ETSI EN 302 858-1 V1.2.1 (2011-07)
Electromagnetic compatibility and Radio spectrum Matters (ERM); Road Transport and Traffic Telematics (RTTT); Short range radar equipment operating in the 24,05 GHz to 24,25 GHz frequency range for automotive application; Part 1: Technical characteristics and test methods
Electromagnetic compatibility and Radio spectrum Matters (ERM); Road Transport and Traffic Telematics (RTTT); Short range radar equipment operating in the 24,05 GHz to 24,25 GHz frequency range for automotive application; Part 1: Technical characteristics and test methods
DEN/ERM-TGSRR-051-1
Elektromagnetna združljivost in zadeve v zvezi z radijskim spektrom (ERM) - Cestna transportna in prometna telematika (RTTT) - Radarska oprema kratkega dosega, ki deluje v frekvenčnem območju od 24,05 GHz do 24,25 GHz - 1. del: Tehnične karakteristike in preskusne metode
Ta dokument določa tehnične zahteve in metode merjenja za naprave kratkega dosega (SRD), ki delujejo v frekvenčnem razponu od 24,05 GHz do 24,25 GHz za ozkopasovne radarje kratkega dosega (NBSRR) za aplikacije s cestnotransportno in prometno telematiko (RTTT), kot so avtomobilski tempomat (ACC), opozorilo pred trkom, sistemi proti trku (AC), zaznavanje ovir, ustavi in spelji, zaznavanje mrtvega kota, pomoč pri parkiranju, sistemi za opozorilo pred trkom, pomožna pomoč in druge ustrezne varnostne avtomobilske aplikacije.
Ta dokument vsebuje tehnične karakteristike in preskusne metode za ozkopasovno radarsko opremo kratkega dosega, ki ima vgrajene antene in velja za oddajnike in sprejemnike z vgrajenimi antenami, ki delujejo v celem ali delu razpona od 24,05 GHz do 24,25 GHz.
Ta dokument ne vključuje nujno vseh značilnosti, potrebnih za uporabnika, niti ne pomeni nujno največje dosegljive zmogljivosti.
Ta dokument zajema samo opremo NB SRR, namenjeno za vozila.
Ta dokument je v skladu z omejitvami polj za človeško izpostavljenost elektromagnetnim poljem, kot jih zagotavlja Priporočilo Sveta EU 1999/519/EC [i.4], in metodami za predstavitev skladnosti v EN 50371 [i.5].
Preglednica 1 prikazuje frekvenčne pasove, dodeljene ozkopasovnim radarskim napravam kratkega dosega.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Electromagnetic compatibility and Radio spectrum Matters (ERM) - Road Transport and Traffic Telematics (RTTT) - Short range radar equipment operating in the 24,05 GHz to 24,25 GHz frequency range for automotive application - Part 1: Technical characteristics and test methods35.240.60Uporabniške rešitve IT v transportu in trgoviniIT applications in transport and trade33.100.01Elektromagnetna združljivost na splošnoElectromagnetic compatibility in general33.060.99Druga oprema za radijske komunikacijeOther equipment for radiocommunicationsICS:Ta slovenski standard je istoveten z:EN 302 858-1 Version 1.2.1SIST EN 302 858-1 V1.2.1:2011en01-september-2011SIST EN 302 858-1 V1.2.1:2011SLOVENSKI
STANDARD
SIST EN 302 858-1 V1.2.1:2011
ETSI EN 302 858-1 V1.2.1 (2011-07)European Standard Electromagnetic compatibilityand Radio spectrum Matters (ERM);Road Transport and Traffic Telematics (RTTT);Short range radar equipment operating in the 24,05 GHz to24,25 GHz frequency range for automotive application;Part 1: Technical characteristics and test methods SIST EN 302 858-1 V1.2.1:2011
ETSI ETSI EN 302 858-1 V1.2.1 (2011-07) 2
Reference DEN/ERM-TGSRR-051-1 Keywords radar, radio, RTTT, SRD, testing ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00
Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88
Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http://portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2011. All rights reserved.
DECTTM, PLUGTESTSTM, UMTSTM and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association. SIST EN 302 858-1 V1.2.1:2011
ETSI ETSI EN 302 858-1 V1.2.1 (2011-07) 3 Contents Intellectual Property Rights . 5 Foreword . 5 1 Scope . 6 2 References . 6 2.1 Normative references . 6 2.2 Informative references . 7 3 Definitions, symbols and abbreviations . 7 3.1 Definitions . 7 3.2 Symbols . 8 3.3 Abbreviations . 8 4 Equipment under test . 9 4.1 Presentation of equipment for testing purposes . 9 4.1.1 Choice of model for testing . 9 4.2 Mechanical and electrical design . 9 4.3 Auxiliary test equipment . 9 5 Test conditions, power sources and ambient temperatures . 10 5.1 Normal and extreme test conditions . 10 5.2 External test power source. 10 5.3 Normal test conditions . 10 5.3.1 Normal temperature and humidity . 10 5.3.2 Normal test power source . 10 5.3.2.1 Test equipment voltage and nominal test voltage . 10 5.3.2.2 Other power sources . 10 5.4 Extreme test conditions . 11 5.4.1 Extreme temperatures . 11 5.4.1.1 Procedure for tests at extreme temperatures . 11 5.4.1.2 Extreme temperature ranges . 11 5.4.2 Extreme test source voltages . 11 5.4.2.1 Mains voltage . 11 5.4.2.2 Other power sources . 11 6 Measurement setup . 11 6.1 Test sites and general arrangements for radiated measurements . 11 6.2 Test fixture . 12 6.2.1 Characteristics . 12 6.2.2 Validation of the test fixture in the temperature chamber . 13 6.2.3 Use of the test fixture for measurement in the temperature chamber . 14 6.3 RF cables . 15 6.4 Measuring receiver . 15 6.4.1 Frequency-selective voltmeter or spectrum analyzer . 15 6.4.2 Signal analyzer . 16 6.4.3 Amplitude calibration . 16 7 Limits for transmitter parameters and methods of measurements . 17 7.1 Introduction . 17 7.2 Frequency, power limits and spectrum access conditions . 17 7.3 Permitted range of operating frequencies . 19 7.3.1 Definition . 19 7.3.2 Method of measurement . 19 7.3.3 Limits . 20 7.4 Maximum radiated peak power (e.i.r.p.) . 20 7.4.1 Definition . 20 7.4.2 Method of measurement . 20 7.4.3
Limits . 21 7.5 Dwell time and repetition time . 21 SIST EN 302 858-1 V1.2.1:2011
ETSI ETSI EN 302 858-1 V1.2.1 (2011-07) 4 7.5.1 Definition . 21 7.5.2 Methods of measurement . 21 7.5.2.1 Signal analysis measurement . 21 7.5.2.2 Measurement of dwell time for a single dwell time event per 40 kHz in 3 ms (category C1) . 23 7.5.2.3 Measurement of cumulated dwell time for more than one dwell time event per 40 kHz in 3 ms (category C2) . 24 7.5.2.3.1 Statistical measurement procedure . 24 7.5.2.3.2 Verification procedure . 25 7.5.2.4 Measurement of absolute dwell time per 40 kHz (category D) . 26 7.5.2.5 Measurement of repetition time for absolute dwell times per 40 kHz (category D) . 27 7.5.3 Limits . 29 7.6 Frequency modulation range . 29 7.6.1 Definition . 29 7.6.2 Method of measurement . 30 7.6.3 Limits . 30 7.7 Radiated spurious emissions. 30 7.7.1 Definition . 30 7.7.2 Method of measurement . 30 7.7.3 Limits . 31 8 Methods of measurement and limits for receiver parameters . 31 8.1 Receiver spurious emissions. 31 8.1.1 Definition . 31 8.1.2 Method of measurement - radiated spurious emissions . 31 8.1.3 Limit . 32 9 Interpretation of test results and measurement uncertainty . 32 9.1 Interpretation of the measurement results . 32 9.2 Absolute measurement uncertainty . 33 Annex A (normative): Radiated measurements . 34 A.1 General requirements for measurements involving the use of radiated fields. 34 A.2 Test Sites . 35 A.2.1 Outdoor test site . 35 A.2.2 Indoor test site . 36 A.2.3 Shielded anechoic test site . 37 A.2.3.1 Influence of parasitic reflections in anechoic chambers . 37 A.2.3.2 Calibration of the shielded RF anechoic chamber . 37 A.3 Antennas . 39 A.3.1 Test antenna . 39 A.3.2 Substitution antenna . 39 A.3.3 Artificial antenna . 39 A.4 Test practice and auxiliary test equipment . 40 A.5 Measuring distance . 40 A.5.1 Standard position . 40 A.5.2 Auxiliary cables . 40 Annex B (normative): Installation requirements . 41 B.1 Installation requirements of 24 GHz Narrow Band Short Range Radar (NB SRR) systems . 41 Annex C (informative): Conversion of power density to e.i.r.p. 42 C.1 Assumptions . 42 C.2 Example . 42 Annex D (informative): Bibliography . 43 History . 44
SIST EN 302 858-1 V1.2.1:2011
ETSI ETSI EN 302 858-1 V1.2.1 (2011-07) 5 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http://ipr.etsi.org). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility and Radio spectrum Matters (ERM). For non EU countries the present document may be used for regulatory (Type Approval) purposes. Equipment compliant with the present document is intended for fitment into road vehicles, therefore it is subject to automotive EMC type approval and needs to comply with Directive 95/54/EC [i.3].
For use on vehicles outside the scope of Directive 95/54/EC [i.3] compliance with an EMC directive/standard appropriate for that use is required. The present document is part 1 of a multi-part deliverable covering Electromagnetic compatibility and Radio spectrum Matters (ERM); Road Transport and Traffic Telematics (RTTT); Short range radar equipment operating in the 24,05 GHz to 24,25 GHz frequency range for automotive application, as identified below: Part 1: "Technical characteristics and test methods"; Part 2: "Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive".
National transposition dates Date of adoption of this EN: 5 July 2011 Date of latest announcement of this EN (doa): 31 October 2011 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
30 April 2012 Date of withdrawal of any conflicting National Standard (dow): 30 April 2012
SIST EN 302 858-1 V1.2.1:2011
ETSI ETSI EN 302 858-1 V1.2.1 (2011-07) 6 1 Scope The present document specifies the technical requirements and methods of measurement for Short Range Devices (SRD) operating in the 24,05 GHz to 24,25 GHz frequency range intended for Narrow Band Short Range Radar (NB SRR) for Road Transport and Traffic Telematics (RTTT) applications such as Automotive Cruise Control (ACC), Collision Warning, Anti-Collision (AC) systems, obstacle detection, Stop and Go, blind spot detection, parking aid, precrash, backup aid and other safety relevant automotive applications. The present document contains the technical characteristics and test methods for narrowband short range radar equipment fitted with integral antennas and applies to transmitters and receivers with integral antennas operating in all or part of the range from 24,05 GHz to 24,25 GHz. The present document does not necessarily include all the characteristics which may be required by a user, nor does it necessarily represent the optimum performance achievable. The present document covers only NB SRR equipment for vehicles. The present document complies with field limits for human exposure to electromagnetic fields as provided by the EC Recommendation 1999/519/EC [i.4] and the methods for compliance demonstration in EN 50371 [i.5]. Table 1 shows the frequency bands as designated to narrow band short range radar devices. Table 1: Narrow band short range radar devices frequency of operation
Frequency Bands/frequencies Applications Transmit and Receive 24,05 GHz to 24,25 GHz Short range radar for vehicle applications
2 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at http://docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative references The following referenced documents are necessary for the application of the present document. [1] CISPR 16 (2006) (parts 1-1, 1-4 and 1-5): "Specification for radio disturbance and immunity measuring apparatus and methods; Part 1: Radio disturbance and immunity measuring apparatus". [2] ETSI TR 100 028 (V1.4.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics". [3] ETSI TR 102 273 (V1.2.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters (ERM); Improvement on Radiated Methods of Measurement (using test site) and evaluation of the corresponding measurement uncertainties". SIST EN 302 858-1 V1.2.1:2011
ETSI ETSI EN 302 858-1 V1.2.1 (2011-07) 7 2.2 Informative references
The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. [i.1] CEPT/ERC Recommendation 70-03: "Relating to the use of Short Range Devices (SRD)". [i.2] CEPT/ECC Report #134 on analysis of potential impact of mobile Vehicle Radars (VR) on Radar Speed Meters (RSM) operating at 24 GHz. [i.3] Commission Directive 95/54/EC of 31 October 1995 adapting to technical progress Council Directive 72/245/EEC on the approximation of the laws of the Member States relating to the suppression of radio interference produced by spark-ignition engines fitted to motor vehicles and amending Directive 70/156/EEC on the approximation of the laws of the Member States relating to the type-approval of motor vehicles and their trailers. [i.4] Council Recommendation 1999/519/EC of 12 July 1999 on the limitation of exposure of the general public to electromagnetic fields (0 Hz to 300 GHz). [i.5] CENELEC EN 50371 (2002): "Generic standard to demonstrate the compliance of low power electronic and electrical apparatus with the basic restrictions related to human exposure to electromagnetic fields (10 MHz - 300 GHz) - General public". [i.6] CEPT/ERC/REC 74-01: "Unwanted emissions in the spurious domain". [i.7] ITU-R Recommendation SM.328-10: "Spectra and Bandwidth of Emissions". [i.8] ITU-R Recommendation SM.329: "Variation of the boundary between the out-of-band and spurious domains". 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: assigned frequency band: frequency band within which the device is authorized to operate boresight: axis of the main beam in a directional antenna bumper: generally 3D shaped plastic sheet normally mounted in front of the NB SRR co-located receiver: receiver is located in the same module box as the transmitter duty cycle: ratio of the total on time of the "message" to the total off-time in any one hour period NOTE: The device may be triggered either automatically or manually, whether the duty cycle is fixed or random depends on how the device is triggered. dwell time: in general, a time interval for which a certain frequency range is occupied NOTE: "Cumulated dwell time" is the sum of individual dwell times within a measurement time frame and in a defined frequency range. "Absolute dwell time" is the time from first entrance into a defined frequency range until last exit from a defined frequency range. Equipment Under Test (EUT): radar sensor including the integrated antenna together with any external antenna components which affect or influence its performance SIST EN 302 858-1 V1.2.1:2011
ETSI ETSI EN 302 858-1 V1.2.1 (2011-07) 8 equivalent isotropically radiated power (e.i.r.p.): total power or power density transmitted, assuming an isotropic radiator NOTE: e.i.r.p. is conventionally the product of "power or power density into the antenna" and "antenna gain". e.i.r.p. is used for both peak or average power and peak or average power density. far field measurement: measurement at a distance "X" of at least 2d2/λ, where d is the largest dimension of the antenna aperture of the EUT operating frequency (operating centre frequency): nominal frequency at which equipment is operated power envelope: power supplied to the antenna by a transmitter during one radio frequency cycle at the crest of the modulation envelope taken under normal operating conditions precrash: time before the crash occurs when safety mechanism are deployed radome: external protective cover which is independent of the associated antenna, and which may contribute to the overall performance of the antenna (and hence, the EUT) 3.2 Symbols For the purposes of the present document, the following symbols apply: DT Dwell Time DT0 Average dwell time value E Field strength fc Carrier frequency fH the frequency of the upper marker resulting from the OBW function fL the frequency of the lower marker resulting from the OBW function FMCW Frequency Modulation Continuous Wave (transmission) Ga Antenna gain NB Narrow Band Prad Radiated power R Distance RSM
Radar Speed Meters Ro Reference distance Rx Receiver Tdw Dwell time Tx Transmitter 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: ac alternating current AC Anti-Collision systems ACC Automotive Cruise Control dB decibel DC Direct Current e.i.r.p. equivalent isotropically radiated power ECC Electronic Communications Committee EMC Electro Magnetic Compatibility ERC European Radiocommunication Committee EUT Equipment Under Test FFT Fast Forward Transfer FH Frequency Hopping FMCW Frequency Modulated Continuous Wave IF Intermediate Frequency LNA Low Noise Amplifier NB SRR Narrow Band Short Range Radar SIST EN 302 858-1 V1.2.1:2011
ETSI ETSI EN 302 858-1 V1.2.1 (2011-07) 9 OBW Occupied BandWidth RBW Resolution BandWidth R&TTE Radio and Telecommunications Terminal Equipment RF Radio Frequency RTTT Road Transport and Traffic Telematics Rx Receiver (Receive) SA Spectrum Analyzer SRD Short Range Device Tx Transmitter VBW Video BandWidth VSWR Voltage Standing Wave Ratio 4 Equipment under test 4.1 Presentation of equipment for testing purposes Each equipment submitted for testing, where applicable, shall fulfil the requirements of the present document on all frequencies over which it is intended to operate. EMC type approval testing to Directive 95/54/EC [i.3] shall be done on the vehicle. The provider
...
Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
European Standard (Telecommunications series)
Electromagnetic compatibility
and Radio spectrum Matters (ERM);
Road Transport and Traffic Telematics (RTTT);
Short range radar equipment operating in the 24,05 GHz to
24,25 GHz frequency range for automotive application;
Part 1: Technical characteristics and test methods
---------------------- Page: 1 ----------------------
2 Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
Reference
DEN/ERM-TGSRR-051-1
Keywords
radar, radio, RTTT, SRD, testing
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
Individual copies of the present document can be downloaded from:
http://www.etsi.org
The present document may be made available in more than one electronic version or in print. In any case of existing or
perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF).
In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive
within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
http://portal.etsi.org/tb/status/status.asp
If you find errors in the present document, please send your comment to one of the following services:
http://portal.etsi.org/chaircor/ETSI_support.asp
Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2010.
All rights reserved.
TM TM TM TM
DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered
for the benefit of its Members.
TM
3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
LTE™ is a Trade Mark of ETSI currently being registered
for the benefit of its Members and of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI
---------------------- Page: 2 ----------------------
3 Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
Contents
Intellectual Property Rights . 5
Foreword . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 7
3.1 Definitions . 7
3.2 Symbols . 8
3.3 Abbreviations . 8
4 Equipment under test . 9
4.1 Presentation of equipment for testing purposes . 9
4.1.1 Choice of model for testing . 9
4.2 Mechanical and electrical design . 9
4.3 Auxiliary test equipment . 10
5 Test conditions, power sources and ambient temperatures . 10
5.1 Normal and extreme test conditions . 10
5.2 External test power source. 10
5.3 Normal test conditions . 10
5.3.1 Normal temperature and humidity . 10
5.3.2 Normal test power source . 10
5.3.2.1 Test equipment voltage and nominal test voltage . 10
5.3.2.2 Other power sources . 11
5.4 Extreme test conditions . 11
5.4.1 Extreme temperatures . 11
5.4.1.1 Procedure for tests at extreme temperatures . 11
5.4.1.2 Extreme temperature ranges . 11
5.4.2 Extreme test source voltages . 11
5.4.2.1 Mains voltage . 11
5.4.2.2 Other power sources . 11
6 Measurement setup . 11
6.1 Test sites and general arrangements for radiated measurements . 11
6.2 Test fixture . 12
6.2.1 Characteristics . 12
6.2.2 Validation of the test fixture in the temperature chamber . 13
6.2.3 Use of the test fixture for measurement in the temperature chamber . 14
6.3 RF cables . 15
6.4 Measuring receiver . 15
6.4.1 Frequency-selective voltmeter or spectrum analyzer . 15
6.4.2 Signal analyzer . 16
6.4.3 Amplitude calibration . 16
7 Limits for transmitter parameters and methods of measurements . 17
7.1 Introduction . 17
7.2 Frequency, power limits and spectrum access conditions . 17
7.3 Permitted range of operating frequencies . 19
7.3.1 Definition . 19
7.3.2 Method of measurement . 19
7.3.3 Limits . 20
7.4 Maximum radiated peak power (e.i.r.p.) . 20
7.4.1 Definition . 20
7.4.2 Method of measurement . 20
7.4.3 Limits . 21
ETSI
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4 Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
7.5 Dwell time and repetition time . 21
7.5.1 Definition . 21
7.5.2 Methods of measurement . 21
7.5.2.1 Signal analysis measurement . 21
7.5.2.2 Measurement of dwell time for a single dwell time event per 40 kHz in 3 ms (category C1) . 23
7.5.2.3 Measurement of cumulated dwell time for more than one dwell time event per 40 kHz in 3 ms
(category C2) . 24
7.5.2.3.1 Statistical measurement procedure . 24
7.5.2.3.2 Verification procedure . 25
7.5.2.4 Measurement of absolute dwell time per 40 kHz (category D) . 26
7.5.2.5 Measurement of repetition time for absolute dwell times per 40 kHz (category D) . 28
7.5.3 Limits . 29
7.6 Frequency modulation range . 29
7.6.1 Definition . 29
7.6.2 Method of measurement . 29
7.6.3 Limits . 30
7.7 Radiated spurious emissions. 30
7.7.1 Definition . 30
7.7.2 Method of measurement . 30
7.7.3 Limits . 30
8 Methods of measurement and limits for receiver parameters . 31
8.1 Receiver spurious emissions. 31
8.1.1 Definition . 31
8.1.2 Method of measurement - radiated spurious emissions . 31
8.1.3 Limit . 32
9 Interpretation of test results and measurement uncertainty . 32
9.1 Interpretation of the measurement results . 32
9.2 Absolute measurement uncertainty . 32
Annex A (normative): Radiated measurements . 33
A.1 General requirements for measurements involving the use of radiated fields. 33
A.2 Test Sites . 34
A.2.1 Outdoor test site . 34
A.2.2 Indoor test site . 35
A.2.3 Shielded anechoic test site . 36
A.2.3.1 Influence of parasitic reflections in anechoic chambers . 36
A.2.3.2 Calibration of the shielded RF anechoic chamber . 36
A.3 Antennas . 38
A.3.1 Test antenna . 38
A.3.2 Substitution antenna . 38
A.3.3 Artificial antenna . 38
A.4 Test practice and auxiliary test equipment . 39
A.5 Measuring distance . 39
A.5.1 Standard position . 39
A.5.2 Auxiliary cables . 39
Annex B (normative): Installation requirements . 40
B.1 Installation requirements of 24 GHz Narrow Band Short Range Radar (NB SRR) systems . 40
Annex C (informative): Conversion of power density to e.i.r.p. 41
C.1 Assumptions . 41
C.2 Example . 41
Annex D (informative): Bibliography . 42
History . 43
ETSI
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5 Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This European Standard (Telecommunications series) has been produced by ETSI Technical Committee
Electromagnetic compatibility and Radio spectrum Matters (ERM), and is now submitted for the Public Enquiry phase
of the ETSI standards Two-step Approval Procedure.
For non EU countries the present document may be used for regulatory (Type Approval) purposes.
Equipment compliant with the present document is intended for fitment into road vehicles, therefore it is subject to
automotive EMC type approval and needs to comply with Directive 95/54/EC [i.3].
For use on vehicles outside the scope of Directive 95/54/EC [i.3] compliance with an EMC directive/standard
appropriate for that use is required.
The present document is part 1 of a multi-part deliverable covering Electromagnetic compatibility and Radio spectrum
Matters (ERM); Road Transport and Traffic Telematics (RTTT); Short range radar equipment operating in the
24,05 GHz to 24,25 GHz frequency range for automotive application, as identified below:
Part 1: "Technical characteristics and test methods";
Part 2: "Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive".
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 6 months after doa
ETSI
---------------------- Page: 5 ----------------------
6 Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
1 Scope
The present document specifies the technical requirements and methods of measurement for Short Range Devices
(SRD) operating in the 24,05 GHz to 24,25 GHz frequency range intended for Narrow Band Short Range Radar (NB
SRR) for Road Transport and Traffic Telematics (RTTT) applications such as Automotive Cruise Control (ACC),
Collision Warning, Anti-Collision (AC) systems, obstacle detection, Stop and Go, blind spot detection, parking aid,
precrash, backup aid and other safety relevant automotive applications.
The present document contains the technical characteristics and test methods for narrowband short range radar
equipment fitted with integral antennas and applies to transmitters and receivers with integral antennas operating in all
or part of the range from 24,05 GHz to 24,25 GHz.
The present document does not necessarily include all the characteristics which may be required by a user, nor does it
necessarily represent the optimum performance achievable.
The present document covers only NB SRR equipment for vehicles.
The present document complies with field limits for human exposure to electromagnetic fields as provided by the
EC Recommendation 1999/519/EC [i.4] and the methods for compliance demonstration in EN 50371 [i.5].
Table 1 shows the frequency bands as designated to narrow band short range radar devices.
Table 1: Narrow band short range radar devices frequency of operation
Frequency Bands/frequencies Applications
Transmit and Receive 24,05 GHz to 24,25 GHz Short range radar for vehicle applications
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] CISPR 16 (2006) (parts 1-1, 1-4 and 1-5): "Specification for radio disturbance and immunity
measuring apparatus and methods; Part 1: Radio disturbance and immunity measuring apparatus".
[2] ETSI TR 100 028 (V1.4.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); Uncertainties in the measurement of mobile radio equipment characteristics".
ETSI
---------------------- Page: 6 ----------------------
7 Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
[3] ETSI TR 102 273 (V1.2.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); Improvement on Radiated Methods of Measurement (using test site) and evaluation of the
corresponding measurement uncertainties".
2.2 Informative references
The following referenced documents are not essential to the use of the present document but they assist the user with
regard to a particular subject area. For non-specific references, the latest version of the referenced document (including
any amendments) applies.
[i.1] CEPT/ERC Recommendation 70-03: "Relating to the use of Short Range Devices (SRD)".
[i.2] CEPT/ECC Report #134 on analysis of potential impact of mobile Vehicle Radars (VR) on Radar
Speed Meters (RSM) operating at 24 GHz.
[i.3] Commission Directive 95/54/EC of 31 October 1995 adapting to technical progress Council
Directive 72/245/EEC on the approximation of the laws of the Member States relating to the
suppression of radio interference produced by spark-ignition engines fitted to motor vehicles and
amending Directive 70/156/EEC on the approximation of the laws of the Member States relating
to the type-approval of motor vehicles and their trailers.
[i.4] Council Recommendation 1999/519/EC of 12 July 1999 on the limitation of exposure of the
general public to electromagnetic fields (0 Hz to 300 GHz).
[i.5] CENELEC EN 50371 (2002): "Generic standard to demonstrate the compliance of low power
electronic and electrical apparatus with the basic restrictions related to human exposure to
electromagnetic fields (10 MHz - 300 GHz) - General public".
[i.6] CEPT/ERC/REC 74-01: "Unwanted emissions in the spurious domain".
[i.7] ITU-R Recommendation SM.328-10: "Spectra and Bandwidth of Emissions".
[i.8] ITU-R Recommendation SM.329: "Variation of the boundary between the out-of-band and
spurious domains".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
assigned frequency band: frequency band within which the device is authorized to operate
boresight: axis of the main beam in a directional antenna
bumper: generally 3D shaped plastic sheet normally mounted in front of the NB SRR
co-located receiver: receiver is located in the same module box as the transmitter
duty cycle: ratio of the total on time of the "message" to the total off-time in any one hour period
NOTE: The device may be triggered either automatically or manually, whether the duty cycle is fixed or random
depends on how the device is triggered.
dwell time: in general, a time interval for which a certain frequency range is occupied
NOTE: "Cumulated dwell time" is the sum of individual dwell times within a measurement time frame
and in a defined frequency range.
"Absolute dwell time" is the time from first entrance into a defined frequency range until last exit from a
defined frequency range.
ETSI
---------------------- Page: 7 ----------------------
8 Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
Equipment Under Test (EUT): radar sensor including the integrated antenna together with any external antenna
components which affect or influence its performance
equivalent isotropically radiated power (e.i.r.p.): total power or power density transmitted, assuming an isotropic
radiator
NOTE: e.i.r.p. is conventionally the product of "power or power density into the antenna" and "antenna gain".
e.i.r.p. is used for both peak or average power and peak or average power density.
2
far field measurement: measurement at a distance "X" of at least 2d /λ , where d is the largest dimension of the
antenna aperture of the EUT
operating frequency (operating centre frequency): nominal frequency at which equipment is operated
power envelope: power supplied to the antenna by a transmitter during one radio frequency cycle at the crest of the
modulation envelope taken under normal operating conditions
precrash: time before the crash occurs when safety mechanism are deployed
radome: external protective cover which is independent of the associated antenna, and which may contribute to the
overall performance of the antenna (and hence, the EUT)
3.2 Symbols
For the purposes of the present document, the following symbols apply:
DT Dwell Time
E Field strength
f Carrier frequency
c
FMCW Frequency Modulation Continuous Wave (transmission)
G Antenna gain
a
NB Narrow Band
P Radiated power
rad
R Distance
RSM Radar Speed Meters
R Reference distance
o
Rx Receiver
T Dwell time
dw
Tx Transmitter
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ac alternating current
AC Anti-Collision systems
ACC Automotive Cruise Control,
dB decibel
DC Direct Current
DT0 Average dwell time value
e.i.r.p. equivalent isotropically radiated power
ECC Electronic Communications Committee
EMC Electro Magnetic Compatibility
ERC European Radiocommunication Committee
EUT Equipment Under Test
FFT Fast Forward Transfer
FH Frequency Hopping
f the frequency of the upper marker resulting from the OBW function
H
f the frequency of the lower marker resulting from the OBW function
L
FMCW Frequency Modulated Continuous Wave
ETSI
---------------------- Page: 8 ----------------------
9 Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
IF Intermediate Frequency
LNA Low Noise Amplifier
NB SRR Narrow Band Short Range Radar
OBW Occupied BandWidth
R&TTE Radio and Telecommunications Terminal Equipment
RF Radio Frequency
RTTT Road Tran
...
SLOVENSKI STANDARD
oSIST prEN 302 858-1 V1.1.1:2010
01-junij-2010
(OHNWURPDJQHWQD]GUXåOMLYRVWLQ]DGHYHY]YH]L]UDGLMVNLPVSHNWURP (50
&HVWQDWUDQVSRUWQDLQSURPHWQDWHOHPDWLND 5777 5DGDUVNDRSUHPDNUDWNHJD
GRVHJDNLGHOXMHYIUHNYHQþQHPREPRþMXRG*+]GR*+]GHO
7HKQLþQHNDUDNWHULVWLNHLQSUHVNXVQHPHWRGH
Electromagnetic compatibility and Radio spectrum Matters (ERM) - Road Transport and
Traffic Telematics (RTTT) - Short range radar equipment operating in the 24,05 GHz to
24,25 GHz frequency range for automotive application - Part 1: Technical characteristics
and test methods
Ta slovenski standard je istoveten z: EN 302 858-1 Version 1.1.1
ICS:
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
35.240.60 Uporabniške rešitve IT v IT applications in transport
transportu in trgovini and trade
oSIST prEN 302 858-1 V1.1.1:2010 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN 302 858-1 V1.1.1:2010
---------------------- Page: 2 ----------------------
oSIST prEN 302 858-1 V1.1.1:2010
Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
European Standard (Telecommunications series)
Electromagnetic compatibility
and Radio spectrum Matters (ERM);
Road Transport and Traffic Telematics (RTTT);
Short range radar equipment operating in the 24,05 GHz to
24,25 GHz frequency range for automotive application;
Part 1: Technical characteristics and test methods
---------------------- Page: 3 ----------------------
oSIST prEN 302 858-1 V1.1.1:2010
2 Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
Reference
DEN/ERM-TGSRR-051-1
Keywords
radar, radio, RTTT, SRD, testing
ETSI
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Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2010.
All rights reserved.
TM TM TM TM
DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered
for the benefit of its Members.
TM
3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
LTE™ is a Trade Mark of ETSI currently being registered
for the benefit of its Members and of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI
---------------------- Page: 4 ----------------------
oSIST prEN 302 858-1 V1.1.1:2010
3 Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
Contents
Intellectual Property Rights . 5
Foreword . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 7
3.1 Definitions . 7
3.2 Symbols . 8
3.3 Abbreviations . 8
4 Equipment under test . 9
4.1 Presentation of equipment for testing purposes . 9
4.1.1 Choice of model for testing . 9
4.2 Mechanical and electrical design . 9
4.3 Auxiliary test equipment . 10
5 Test conditions, power sources and ambient temperatures . 10
5.1 Normal and extreme test conditions . 10
5.2 External test power source. 10
5.3 Normal test conditions . 10
5.3.1 Normal temperature and humidity . 10
5.3.2 Normal test power source . 10
5.3.2.1 Test equipment voltage and nominal test voltage . 10
5.3.2.2 Other power sources . 11
5.4 Extreme test conditions . 11
5.4.1 Extreme temperatures . 11
5.4.1.1 Procedure for tests at extreme temperatures . 11
5.4.1.2 Extreme temperature ranges . 11
5.4.2 Extreme test source voltages . 11
5.4.2.1 Mains voltage . 11
5.4.2.2 Other power sources . 11
6 Measurement setup . 11
6.1 Test sites and general arrangements for radiated measurements . 11
6.2 Test fixture . 12
6.2.1 Characteristics . 12
6.2.2 Validation of the test fixture in the temperature chamber . 13
6.2.3 Use of the test fixture for measurement in the temperature chamber . 14
6.3 RF cables . 15
6.4 Measuring receiver . 15
6.4.1 Frequency-selective voltmeter or spectrum analyzer . 15
6.4.2 Signal analyzer . 16
6.4.3 Amplitude calibration . 16
7 Limits for transmitter parameters and methods of measurements . 17
7.1 Introduction . 17
7.2 Frequency, power limits and spectrum access conditions . 17
7.3 Permitted range of operating frequencies . 19
7.3.1 Definition . 19
7.3.2 Method of measurement . 19
7.3.3 Limits . 20
7.4 Maximum radiated peak power (e.i.r.p.) . 20
7.4.1 Definition . 20
7.4.2 Method of measurement . 20
7.4.3 Limits . 21
ETSI
---------------------- Page: 5 ----------------------
oSIST prEN 302 858-1 V1.1.1:2010
4 Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
7.5 Dwell time and repetition time . 21
7.5.1 Definition . 21
7.5.2 Methods of measurement . 21
7.5.2.1 Signal analysis measurement . 21
7.5.2.2 Measurement of dwell time for a single dwell time event per 40 kHz in 3 ms (category C1) . 23
7.5.2.3 Measurement of cumulated dwell time for more than one dwell time event per 40 kHz in 3 ms
(category C2) . 24
7.5.2.3.1 Statistical measurement procedure . 24
7.5.2.3.2 Verification procedure . 25
7.5.2.4 Measurement of absolute dwell time per 40 kHz (category D) . 26
7.5.2.5 Measurement of repetition time for absolute dwell times per 40 kHz (category D) . 28
7.5.3 Limits . 29
7.6 Frequency modulation range . 29
7.6.1 Definition . 29
7.6.2 Method of measurement . 29
7.6.3 Limits . 30
7.7 Radiated spurious emissions. 30
7.7.1 Definition . 30
7.7.2 Method of measurement . 30
7.7.3 Limits . 30
8 Methods of measurement and limits for receiver parameters . 31
8.1 Receiver spurious emissions. 31
8.1.1 Definition . 31
8.1.2 Method of measurement - radiated spurious emissions . 31
8.1.3 Limit . 32
9 Interpretation of test results and measurement uncertainty . 32
9.1 Interpretation of the measurement results . 32
9.2 Absolute measurement uncertainty . 32
Annex A (normative): Radiated measurements . 33
A.1 General requirements for measurements involving the use of radiated fields. 33
A.2 Test Sites . 34
A.2.1 Outdoor test site . 34
A.2.2 Indoor test site . 35
A.2.3 Shielded anechoic test site . 36
A.2.3.1 Influence of parasitic reflections in anechoic chambers . 36
A.2.3.2 Calibration of the shielded RF anechoic chamber . 36
A.3 Antennas . 38
A.3.1 Test antenna . 38
A.3.2 Substitution antenna . 38
A.3.3 Artificial antenna . 38
A.4 Test practice and auxiliary test equipment . 39
A.5 Measuring distance . 39
A.5.1 Standard position . 39
A.5.2 Auxiliary cables . 39
Annex B (normative): Installation requirements . 40
B.1 Installation requirements of 24 GHz Narrow Band Short Range Radar (NB SRR) systems . 40
Annex C (informative): Conversion of power density to e.i.r.p. 41
C.1 Assumptions . 41
C.2 Example . 41
Annex D (informative): Bibliography . 42
History . 43
ETSI
---------------------- Page: 6 ----------------------
oSIST prEN 302 858-1 V1.1.1:2010
5 Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This European Standard (Telecommunications series) has been produced by ETSI Technical Committee
Electromagnetic compatibility and Radio spectrum Matters (ERM), and is now submitted for the Public Enquiry phase
of the ETSI standards Two-step Approval Procedure.
For non EU countries the present document may be used for regulatory (Type Approval) purposes.
Equipment compliant with the present document is intended for fitment into road vehicles, therefore it is subject to
automotive EMC type approval and needs to comply with Directive 95/54/EC [i.3].
For use on vehicles outside the scope of Directive 95/54/EC [i.3] compliance with an EMC directive/standard
appropriate for that use is required.
The present document is part 1 of a multi-part deliverable covering Electromagnetic compatibility and Radio spectrum
Matters (ERM); Road Transport and Traffic Telematics (RTTT); Short range radar equipment operating in the
24,05 GHz to 24,25 GHz frequency range for automotive application, as identified below:
Part 1: "Technical characteristics and test methods";
Part 2: "Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive".
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 6 months after doa
ETSI
---------------------- Page: 7 ----------------------
oSIST prEN 302 858-1 V1.1.1:2010
6 Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
1 Scope
The present document specifies the technical requirements and methods of measurement for Short Range Devices
(SRD) operating in the 24,05 GHz to 24,25 GHz frequency range intended for Narrow Band Short Range Radar (NB
SRR) for Road Transport and Traffic Telematics (RTTT) applications such as Automotive Cruise Control (ACC),
Collision Warning, Anti-Collision (AC) systems, obstacle detection, Stop and Go, blind spot detection, parking aid,
precrash, backup aid and other safety relevant automotive applications.
The present document contains the technical characteristics and test methods for narrowband short range radar
equipment fitted with integral antennas and applies to transmitters and receivers with integral antennas operating in all
or part of the range from 24,05 GHz to 24,25 GHz.
The present document does not necessarily include all the characteristics which may be required by a user, nor does it
necessarily represent the optimum performance achievable.
The present document covers only NB SRR equipment for vehicles.
The present document complies with field limits for human exposure to electromagnetic fields as provided by the
EC Recommendation 1999/519/EC [i.4] and the methods for compliance demonstration in EN 50371 [i.5].
Table 1 shows the frequency bands as designated to narrow band short range radar devices.
Table 1: Narrow band short range radar devices frequency of operation
Frequency Bands/frequencies Applications
Transmit and Receive 24,05 GHz to 24,25 GHz Short range radar for vehicle applications
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] CISPR 16 (2006) (parts 1-1, 1-4 and 1-5): "Specification for radio disturbance and immunity
measuring apparatus and methods; Part 1: Radio disturbance and immunity measuring apparatus".
[2] ETSI TR 100 028 (V1.4.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); Uncertainties in the measurement of mobile radio equipment characteristics".
ETSI
---------------------- Page: 8 ----------------------
oSIST prEN 302 858-1 V1.1.1:2010
7 Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
[3] ETSI TR 102 273 (V1.2.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); Improvement on Radiated Methods of Measurement (using test site) and evaluation of the
corresponding measurement uncertainties".
2.2 Informative references
The following referenced documents are not essential to the use of the present document but they assist the user with
regard to a particular subject area. For non-specific references, the latest version of the referenced document (including
any amendments) applies.
[i.1] CEPT/ERC Recommendation 70-03: "Relating to the use of Short Range Devices (SRD)".
[i.2] CEPT/ECC Report #134 on analysis of potential impact of mobile Vehicle Radars (VR) on Radar
Speed Meters (RSM) operating at 24 GHz.
[i.3] Commission Directive 95/54/EC of 31 October 1995 adapting to technical progress Council
Directive 72/245/EEC on the approximation of the laws of the Member States relating to the
suppression of radio interference produced by spark-ignition engines fitted to motor vehicles and
amending Directive 70/156/EEC on the approximation of the laws of the Member States relating
to the type-approval of motor vehicles and their trailers.
[i.4] Council Recommendation 1999/519/EC of 12 July 1999 on the limitation of exposure of the
general public to electromagnetic fields (0 Hz to 300 GHz).
[i.5] CENELEC EN 50371 (2002): "Generic standard to demonstrate the compliance of low power
electronic and electrical apparatus with the basic restrictions related to human exposure to
electromagnetic fields (10 MHz - 300 GHz) - General public".
[i.6] CEPT/ERC/REC 74-01: "Unwanted emissions in the spurious domain".
[i.7] ITU-R Recommendation SM.328-10: "Spectra and Bandwidth of Emissions".
[i.8] ITU-R Recommendation SM.329: "Variation of the boundary between the out-of-band and
spurious domains".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
assigned frequency band: frequency band within which the device is authorized to operate
boresight: axis of the main beam in a directional antenna
bumper: generally 3D shaped plastic sheet normally mounted in front of the NB SRR
co-located receiver: receiver is located in the same module box as the transmitter
duty cycle: ratio of the total on time of the "message" to the total off-time in any one hour period
NOTE: The device may be triggered either automatically or manually, whether the duty cycle is fixed or random
depends on how the device is triggered.
dwell time: in general, a time interval for which a certain frequency range is occupied
NOTE: "Cumulated dwell time" is the sum of individual dwell times within a measurement time frame
and in a defined frequency range.
"Absolute dwell time" is the time from first entrance into a defined frequency range until last exit from a
defined frequency range.
ETSI
---------------------- Page: 9 ----------------------
oSIST prEN 302 858-1 V1.1.1:2010
8 Draft ETSI EN 302 858-1 V1.1.1 (2010-04)
Equipment Under Test (EUT): radar sensor including the integrated antenna together with any external antenna
components which affect or influence its performance
equivalent isotropically radiated power (e.i.r.p.): total power or power density transmitted, assuming an isotropic
radiator
NOTE: e.i.r.p. is conventionally the product of "power or power density into the antenna" and "antenna gain".
e.i.r.p. is used for both peak or average power and peak or average power density.
2
far field measurement: measurement at a distance "X" of at least 2d /λ , where d is the largest dimension of the
antenna aperture of the EUT
operating frequency (operating centre frequency): nominal frequency at which equipment is operated
power envelope: power supplied to the antenna by a transmitter during one radio frequency cycle at the crest of the
modulation envelope taken under normal operating conditions
precrash: time before the crash occurs when safety m
...
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