Maritime navigation and radiocommunication equipment and systems - Global navigation satellite systems (GNSS) - Part 5: BeiDou navigation satellite system (BDS) - Receiver equipment - Performance requirements, methods of testing and required test results

IEC 61108-5:2020 specifies the minimum performance requirements, methods of testing and required test results for BDS shipborne receiver equipment, based on IMO resolution MSC.379(93), which uses the signals from the BeiDou navigation satellite system in order to determine position. It takes account of the general requirements given in IMO resolution A.694(17) and is associated with IEC 60945. When a requirement in this document is different from IEC 60945, the requirement in this document takes precedence. This document also takes account, as appropriate, of requirements for the presentation of navigation-related information on shipborne navigational displays given in IMO resolution MSC.191(79) and is associated with IEC 62288 and MSC.302(87) associated with IEC 62923-1.
This receiver standard applies to navigation in the ocean, coastal, harbour entrances, harbour approaches and restricted waters, as defined in IMO resolution A.915(22) and IMO resolution A.1046(27).

Matériels et systèmes de navigation et de radiocommunication maritimes - Système mondial de navigation par satellite (GNSS) - Partie 5: Système de navigation par satellite BeiDou (BDS) - Matériels de réception - Exigences de performances, méthodes d'essai et résultats d'essai exigés

L'IEC 61108-5:2020 spécifie les exigences de performances minimales, les méthodes d'essai et les résultats d'essai exigés pour le matériel de réception de bord BDS, conformément à la Résolution MSC.379(93) de l'OMI, qui utilise les signaux provenant du système de navigation par satellite BeiDou afin de déterminer une position. Elle tient compte des exigences générales données dans la résolution A.694(17) de l'OMI et est associée à l'IEC 60945. Si une exigence du présent document est différente de l'IEC 60945, l'exigence du présent document a la priorité. Le présent document tient également compte, selon le cas, des exigences de présentation des informations relatives à la navigation sur les écrans de navigation de bord, données dans la résolution MSC.191(79) de l'OMI, et est associé à l'IEC 62288 et à la résolution MSC.302(87) associée à l'IEC 62923-1.
Cette norme relative aux récepteurs s'applique à la navigation sur l'océan, à la navigation côtière, à l'entrée d'un port, à l'approche d'un port et aux eaux à navigation réglementée, comme cela est défini dans les Résolutions A.915(22) et A.1046(27) de l'OMI.

General Information

Status
Published
Publication Date
10-Mar-2020
Current Stage
PPUB - Publication issued
Completion Date
11-Mar-2020
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IEC 61108-5:2020 - Maritime navigation and radiocommunication equipment and systems - Global navigation satellite systems (GNSS) - Part 5: BeiDou navigation satellite system (BDS) - Receiver equipment - Performance requirements, methods of testing and required test results
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IEC 61108-5
Edition 1.0 2020-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Maritime navigation and radiocommunication equipment and systems –
Global navigation satellite systems (GNSS) –
Part 5: BeiDou navigation satellite system (BDS) – Receiver equipment –
Performance requirements, methods of testing and required test results
Matériels et systèmes de navigation et de radiocommunication maritimes –
Système mondial de navigation par satellite (GNSS) –
Partie 5: Système de navigation par satellite BeiDou (BDS) –
Matériels de réception – Exigences de performances, méthodes d'essai et
résultats d'essai exigés
IEC 61108-5:2020-03(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61108-5
Edition 1.0 2020-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Maritime navigation and radiocommunication equipment and systems –
Global navigation satellite systems (GNSS) –
Part 5: BeiDou navigation satellite system (BDS) – Receiver equipment –
Performance requirements, methods of testing and required test results
Matériels et systèmes de navigation et de radiocommunication maritimes –
Système mondial de navigation par satellite (GNSS) –
Partie 5: Système de navigation par satellite BeiDou (BDS) –
Matériels de réception – Exigences de performances, méthodes d'essai et
résultats d'essai exigés
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 47.020.70 ISBN 978-2-8322-7909-0

Warning! Make sure that you obtained this publication from an authorized distributor.

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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 61108-5:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 4

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms, definitions and abbreviated terms ........................................................................ 7

3.1 Terms and definitions .............................................................................................. 7

3.2 Abbreviated terms ................................................................................................... 8

4 Minimum performance requirements ................................................................................ 9

4.1 Object ..................................................................................................................... 9

4.2 BDS receiver equipment ......................................................................................... 9

4.2.1 Minimum facilities ............................................................................................ 9

4.2.2 Configuration ................................................................................................... 9

4.2.3 Quality assurance .......................................................................................... 10

4.3 Performance of BDS receiver equipment ............................................................... 10

4.3.1 General ......................................................................................................... 10

4.3.2 Equipment interfaces ..................................................................................... 10

4.3.3 Accuracy ....................................................................................................... 12

4.3.4 Acquisition ..................................................................................................... 12

4.3.5 Protection ...................................................................................................... 13

4.3.6 Antenna design .............................................................................................. 13

4.3.7 Sensitivity and dynamic range ....................................................................... 13

4.3.8 Effects of specific interfering signals .............................................................. 13

4.3.9 Position update .............................................................................................. 14

4.3.10 Differential BDS input .................................................................................... 14

4.3.11 Navigation warnings and status indications .................................................... 15

4.3.12 Output of COG, SOG and UTC ...................................................................... 17

4.3.13 Typical interference conditions ...................................................................... 18

5 Methods of testing and required test results .................................................................. 18

5.1 Test sites .............................................................................................................. 18

5.2 Test sequence ...................................................................................................... 19

5.3 Standard test signals ............................................................................................ 19

5.4 Determination of accuracy .................................................................................... 19

5.5 General requirements and presentation requirements ........................................... 20

5.5.1 Normal environmental conditions for tests ..................................................... 20

5.5.2 General requirements .................................................................................... 20

5.5.3 Presentation requirements ............................................................................. 20

5.6 Receiver performance tests .................................................................................. 20

5.6.1 BDS receiver equipment ................................................................................ 20

5.6.2 Position output............................................................................................... 20

5.6.3 Equipment interfaces ..................................................................................... 20

5.6.4 Accuracy ....................................................................................................... 20

5.6.5 Acquisition ..................................................................................................... 22

5.6.6 Protection ...................................................................................................... 23

5.6.7 Antenna design .............................................................................................. 23

5.6.8 Sensitivity and dynamic range ....................................................................... 23

5.6.9 Protection from other shipborne transmitters ................................................. 23

5.6.10 Position update .............................................................................................. 24

5.6.11 Differential BDS input .................................................................................... 24

---------------------- Page: 4 ----------------------
IEC 61108-5:2020 © IEC 2020 – 3 –

5.6.12 Navigational warnings and status indications ................................................. 25

5.6.13 Accuracy of COG and SOG............................................................................ 27

5.6.14 Validity of COG and SOG information ............................................................ 28

5.6.15 Output of UTC ............................................................................................... 28

5.7 Tests for typical RF interference conditions........................................................... 28

5.7.1 Simulator conditions ...................................................................................... 28

5.7.2 Navigation solution accuracy test ................................................................... 28

5.7.3 Re-acquisition test ......................................................................................... 29

Annex A (normative) Typical BDS interference environment................................................. 31

A.1 BDS CW in-band and near-band interference environment .................................... 31

A.2 Band-limited noise-like interference ...................................................................... 32

A.3 Pulsed interference ............................................................................................... 33

A.4 BDS minimum antenna gain .................................................................................. 34

Annex B (normative) Alert management ............................................................................... 35

Annex C (normative) Sentences to support BDS receiver operation ..................................... 36

C.1 General ................................................................................................................. 36

C.2 DTM – Datum reference ........................................................................................ 36

C.3 GBS – GNSS satellite fault detection .................................................................... 37

C.4 GDC – GNSS differential correction ...................................................................... 39

C.5 GFA – GNSS fix accuracy and integrity ................................................................. 41

C.6 GNS – GNSS fix data ............................................................................................ 42

C.7 GRS – GNSS range residuals ............................................................................... 45

C.8 GSA – GNSS DOP and active satellites ................................................................ 47

C.9 GST – GNSS pseudorange error statistics ............................................................ 49

C.10 GSV – GNSS satellites in view .............................................................................. 50

Bibliography .......................................................................................................................... 53

Figure 1 – Logical interfaces of BDS receiver ....................................................................... 11

Figure A.1 – CW interference thresholds for BDS receivers in steady-state navigation .......... 32

Figure A.2 – Interference thresholds versus bandwidth for BDS ............................................ 33

Table 1 – Acquisition time limits ............................................................................................ 13

Table 2 – RAIM integrity states ............................................................................................. 17

Table 3 – Accuracy of COG .................................................................................................. 18

Table 4 – RF interference value ............................................................................................ 29

Table A.1 – CW interference thresholds for BDS receivers in steady-state navigation ........... 31

Table A.2 – Interference threshold for band-limited noise-like interference to BDS

receivers in steady-state navigation ...................................................................................... 33

Table A.3 – Interference characteristics for pulsed interference ............................................ 34

Table A.4 – BDS minimum antenna gain ............................................................................... 34

Table B.1 – Required alerts and their classification ............................................................... 35

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– 4 – IEC 61108-5:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MARITIME NAVIGATION AND RADIOCOMMUNICATION EQUIPMENT AND
SYSTEMS – GLOBAL NAVIGATION SATELLITE SYSTEMS (GNSS) –
Part 5: BeiDou navigation satellite system (BDS) – Receiver equipment –
Performance requirements, methods of testing and required test results
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent

rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 61108-5 has been prepared by IEC technical committee 80:

Maritime navigation and radiocommunication equipment and systems.
The text of this International Standard is based on the following documents:
FDIS Report on voting
80/952/FDIS 80/955/RVD

Full information on the voting for the approval of this International Standard can be found in the

report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

---------------------- Page: 6 ----------------------
IEC 61108-5:2020 © IEC 2020 – 5 –

All text of this document, whose meaning is identical to that in IMO resolution MSC.379(93), is

printed in italics and the resolution and paragraph numbers are indicated in brackets, i.e.

(M.379/A1.2).

A list of all parts in the IEC 61108 series, published under the general title Maritime navigation

and radiocommunication equipment and systems – Global navigation satellite systems (GNSS),

can be found on the IEC website.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct understanding

of its contents. Users should therefore print this document using a colour printer.

---------------------- Page: 7 ----------------------
– 6 – IEC 61108-5:2020 © IEC 2020
MARITIME NAVIGATION AND RADIOCOMMUNICATION EQUIPMENT AND
SYSTEMS – GLOBAL NAVIGATION SATELLITE SYSTEMS (GNSS) –
Part 5: BeiDou navigation satellite system (BDS) – Receiver equipment –
Performance requirements, methods of testing and required test results
1 Scope

This part of IEC 61108 specifies the minimum performance requirements, methods of testing

and required test results for BDS shipborne receiver equipment, based on IMO resolution

MSC.379(93), which uses the signals from the BeiDou navigation satellite system in order to

determine position. It takes account of the general requirements given in IMO resolution

A.694(17) and is associated with IEC 60945. When a requirement in this document is different

from IEC 60945, the requirement in this document takes precedence. This document also takes

account, as appropriate, of requirements for the presentation of navigation-related information

on shipborne navigational displays given in IMO resolution MSC.191(79) and is associated with

IEC 62288 and MSC.302(87) associated with IEC 62923-1.

This receiver standard applies to navigation in the ocean, coastal, harbour entrances, harbour

approaches and restricted waters, as defined in IMO resolution A.915(22) and IMO resolution

A.1046(27).
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies.

For undated references, the latest edition of the referenced document (including any

amendments) applies.

IEC 60721-3-6:1987, Classification of environmental conditions. Part 3: Classification of groups

of environmental parameters and their severities. Ship environment

IEC 60945, Maritime navigation and radiocommunication equipment and systems – General

requirements – Methods of testing and required test results

IEC 61108-4, Maritime navigation and radiocommunication equipment and systems – Global

navigation satellite systems (GNSS) – Part 4: Shipborne DGPS and DGLONASS maritime radio

beacon receiver equipment – Performance requirements, methods of testing and required test

results

IEC 61162-1, Maritime navigation and radiocommunication equipment and systems – Digital

interfaces – Part 1: Single talker and multiple listeners

IEC 61162-2, Maritime navigation and radiocommunication equipment and systems – Digital

interfaces – Part 2: Single talker and multiple listeners, high-speed transmission

IEC 61162-450, Maritime navigation and radiocommunication equipment and systems – Digital

interfaces – Part 450: Multiple talkers and multiple listeners – Ethernet interconnection

IEC 62288, Maritime navigation and radiocommunication equipment and systems –

Presentation of navigation-related information on shipborne navigational displays – General

requirements, methods of testing and required test results
---------------------- Page: 8 ----------------------
IEC 61108-5:2020 © IEC 2020 – 7 –

IEC 62923-1, Maritime navigation and radiocommunication equipment and systems – Bridge

alert management – Part 1: Operational and performance requirements, methods of testing and

required test results

IEC 62923-2, Maritime navigation and radiocommunication equipment and systems – Bridge

alert management – Part 2: Alert and cluster identifiers and other additional features

ITU-R Recommendation M.823-3, Technical characteristics of differential transmissions for

global navigation satellite systems from maritime radio beacons in the frequency band 283.5-

315 kHz in Region 1 and 285-325 kHz in Regions 2 and 3

IMO resolution A.694(17), General requirements for shipborne radio equipment forming part of

the Global maritime distress and safety system (GMDSS) and for electronic navigational aids

IMO resolution A.915(22), Revised maritime policy and requirements for a future Global

Navigation Satellite System (GNSS)
IMO resolution A.1046(27), Worldwide radionavigation system

IMO resolution MSC.379(93), Performance standards for shipborne BeiDou satellite navigation

system (BDS) receiver equipment
IMO resolution MSC.401(95), Performance standards for multi-system shipborne
radionavigation receivers

RTCM 10402.4, Recommended standards for differential GNSS (Global Navigation Satellite

Systems) service

BDS-SIS-ICD-B1I-3.0, BeiDou Navigation Satellite System Signal In Space Interface Control

Document Open Service Signal B1I (Version 3.0), China Satellite Navigation Office

3 Terms, definitions and abbreviated terms

For the purposes of this document, the following terms, definitions and abbreviated terms apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1 Terms and definitions
3.1.1
BeiDou coordinate system
BDCS
coordinate system adopted by BDS

Note 1 to entry: The definition of BDCS is in accordance with the specifications of the International earth rotation

and reference system service (IERS), and it is consistent with the definition of the China geodetic coordinate system

2000 (CGCS2000). BDCS and CGCS2000 have the same ellipsoid parameters. The origin is located at the Earth’s

centre of mass. The Z-axis is the direction of the IERS reference pole (IRP). The X-axis is the intersection of the

IERS Reference Meridian (IRM) and the plane passing through the origin and normal to the Z-axis. The Y-axis,

together with Z-axis and X-axis, constitutes a right-handed orthogonal coordinate system. The length unit is the

international system of units (SI) metre.
Note 2 to entry: This note applies to the French language only.
---------------------- Page: 9 ----------------------
– 8 – IEC 61108-5:2020 © IEC 2020
3.1.2
BDS time
BDT

time reference which adopts the international system of units (SI) second as the base unit, and

accumulates continuously without leap seconds

Note 1 to entry: The start epoch of BDT is 00:00:00 on January 1, 2006 of coordinated universal time (UTC). BDT

connects with UTC via UTC (NTSC), and the deviation of BDT to UTC is maintained within 50 ns (modulo 1 s). The

leap second information is broadcast in the navigation message.
Note 2 to entry: This note applies to the French language only.
3.1.3
BeiDou navigation satellite system
BDS

system independently developed and operated by China and providing position, velocity and

time information for users, including open service and authorized service and short messages

service
3.2 Abbreviated terms
BAM bridge alert management
CAM central alert management
COG course over ground
CW continuous wave
DBDS differential BDS
EUT equipment under test
GNSS global navigation satellite system
GPS global positioning system
HAL horizontal alert limit
HDOP horizontal dilution of precision
HPL horizontal protection limit
INS integrated navigation system
MKD minimum keyboard display
NB narrow band
NTSC National time service centre (Chinese academy of sciences)
OS open service
PDOP position dilution of precision
PNT position, navigation and timing
PVT position, velocity and time
RAIM receiver autonomous integrity monitoring
RF radio frequency
RFCS radio frequency constellation simulator
RFI radio frequency interference
SIS signal in space
SOG speed over gro
...

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