ISO 23150-11

Road vehicles — Logical interface between sensors and data fusion unit for automated driving functions — Part 11: Radar specific interfaces

This document is applicable to road vehicles with automated driving functions. The document specifies the logical interface between in-vehicle environmental perception sensors (for example, radar, lidar, camera, ultrasonic) and the fusion unit which generates a surround model and interprets the scene around the vehicle based on the sensor data. The interface is described in a modular and semantic representation and provides information on object level (for example, potentially moving objects, road objects, static objects) as well as information on feature and detection levels based on sensor technology specific information. Further supportive information is available. This document does not provide electrical and mechanical interface specifications. Raw data interfaces are also excluded.

Véhicules routiers — Interface logique entre capteurs et unité de fusion de données pour les fonctions de conduite automatisée — Partie 11: Interfaces spécifiques de radar

General Information

• Status: Not Published
• ICS: 43.040.15 - Car informatics. On board computer systems
• Technical Committee: ISO/TC 22/SC 31 - Data communication
• Drafting Committee: ISO/TC 22/SC 31/WG 9 - Sensor data interface for automated driving functions
• Current Stage: 6000 - International Standard under publication
• Start Date: 23-Apr-2026
• Completion Date: 25-Apr-2026

Relations

• Revises: ISO 23150:2023 - Road vehicles — Data communication between sensors and data fusion unit for automated driving functions — Logical interface
• Effective Date: 28-Oct-2023

Overview

ISO 23150-11:2026 is an international standard developed by ISO for road vehicles equipped with automated driving functions. This document defines the logical interface between radar sensors-or radar sensor clusters-and the data fusion unit within a vehicle. The focus is on technology-specific interface definitions for radar sensors, describing how these environmental perception sensors exchange information with the central data fusion unit. This logical interfacing enables the fusion unit to create a comprehensive surround model and interpret the vehicle’s environment, improving the effectiveness of automated driving functions.

The standard utilizes a modular and semantic approach, ensuring compatibility and scalability within diverse vehicular architectures and sensor setups. ISO 23150-11 is dedicated to logical data descriptions and excludes raw data, as well as electrical and mechanical interfaces.

Key Topics

• Scope of Interface
  The document specifies logical (not physical) interfaces between in-vehicle radar sensors and data fusion units for automated driving functions in road vehicles.

• Modular Interfacing
  Interfaces are defined in a modular hierarchy, accommodating feature, advanced detection, and detection levels. For radar, only the detection level interface is specified.

• Semantic Representation
  Data is exchanged about detected objects at the object, feature, and detection levels, supporting better scene understanding for automated systems.

• Detection Level Details
  The radar detection interface communicates information such as:

  • Detection headers (versioning, sensor IDs, cycle time)
  • Measured detections (position, velocity, radar cross-section)
  • Ambiguity domains (e.g., range, angle, and velocity ambiguities inherent to radar technology)
  • Probabilities (existence, multi-target, or ambiguity detection probabilities)
  • Additional information, such as signal strengths and error representations

• Exclusions
  The standard does not define electrical, mechanical, or raw data interfaces; it solely addresses logical representations and signal groupings relevant for environmental perception and automated driving.

Applications

Adherence to ISO 23150-11 improves robustness, reliability, and interoperability in automotive systems that leverage radar sensors for advanced driver assistance and automated driving functions. Use cases include:

• Sensor Integration
  Harmonized radar interfaces simplify incorporating multiple sensor types (radar, lidar, cameras, ultrasonic) into a common data fusion architecture.

• Automated and Autonomous Driving
  Provides a standardized way to represent radar detections (e.g., object tracking, obstacle recognition) to facilitate scene interpretation for Level 3+ automated driving systems.

• System Upgradability and Interoperability
  Adoption of semantic and modular signal definitions allows manufacturers and suppliers to integrate sensors from different sources more seamlessly, improving flexibility and scalability.

• Development and Validation
  Enables consistent interpretation of radar detection signals in simulation, development, and field validation of automated driving functions.

Related Standards

ISO 23150-11 is part of the broader ISO 23150 series. Key related standards include:

• ISO 23150-1
  General information and principles underpinning logical interfaces between sensors and data fusion units.

• ISO 23150-2
  Object-level interfaces for environmental perception sensors.

• ISO 23150-20
  Supportive and sensor input interfaces, covering additional data inputs relevant to automated driving.

These related standards provide foundational concepts, as well as complementary interface definitions for other sensor technologies and higher abstraction levels. Together, they establish a comprehensive framework for logical sensor interfacing in automated and connected vehicles.

---

Implementing ISO 23150-11 ensures standardized radar interfaces, supporting safer and more effective automated driving systems by harmonizing the way sensor data is communicated and interpreted within modern vehicles.

Standards Content (Sample)

FINAL DRAFT
International
Standard
ISO/FDIS 23150-11
ISO/TC 22/SC 31
Road vehicles — Logical interface
Secretariat: DIN
between sensors and data fusion
Voting begins on:
unit for automated driving
2026-02-25
functions —
Voting terminates on:
2026-04-22
Part 11:
Radar specific interfaces
Véhicules routiers — Interface logique entre capteurs et unité de
fusion de données pour les fonctions de conduite automatisée —
Partie 11: Interfaces spécifiques de radar
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 23150-11:2026(en) © ISO 2026

FINAL DRAFT
ISO/FDIS 23150-11:2026(en)
International
Standard
ISO/FDIS 23150-11
ISO/TC 22/SC 31
Road vehicles — Logical interface
Secretariat: DIN
between sensors and data fusion
Voting begins on:
unit for automated driving
functions —
Voting terminates on:
Part 11:
Radar specific interfaces
Véhicules routiers — Interface logique entre capteurs et unité de
fusion de données pour les fonctions de conduite automatisée —
Partie 11: Interfaces spécifiques de radar
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2026
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 23150-11:2026(en) © ISO 2026

ii
ISO/FDIS 23150-11:2026(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 1
5 Feature level . 2
6 Advanced detection level . 2
7 Detection level . 3
7.1 Radar detection interface .3
7.2 Radar detection header .6
7.3 Radar detection entity .7
7.4 Radar detection profiles .8
Annex A (normative) Radar interface signals . 9
Bibliography .12

iii
ISO/FDIS 23150-11:2026(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see http://www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
http://www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement. For an explanation of the voluntary nature of standards, the meaning of ISO
specific terms and expressions related to conformity assessment, as well as information about ISO's
adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
http://www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 31, Data
communication.
This first edition of ISO 23150-11, together with ISO 23150-1, ISO 23150-2, ISO 23150-12, ISO 23150-13,
ISO 23150-14, ISO 23150-15 and ISO 23150-20, cancels and replaces ISO 23150:2023, which has been
technically revised.
The main changes are as follows:
— reorganisation of the document structure; use of generic interfaces, generic signals, generic profiles and
[1]
terms and definitions defined in ISO/FDIS 23150-1 as a basis for this document;
— specific collection of interfaces in separated documents; in this document specific collection of all
technology specific interfaces for radar;
— revise of the logical interfaces.
A list of all parts in the ISO 23150 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
ISO/FDIS 23150-11:2026(en)
Introduction
Vehicle environmental perception sensors (single sensor or sensor cluster) provide logical interfaces
according to the ISO 23150 series to the fusion unit or automated driving functions. The fusion unit
generates a surround model and interprets the scene around the vehicle based on the sensor data. Interfaces
are defined on different levels and described in a modular and semantic representation. The interfaces
on feature level, advanced detection level and detection level are technology specific and differ by each
technology.
Figure 1 shows the schematic and contextual relationships between the documents relating to logical
interfaces of the ISO 23150 series.
Key
scope of this document
Figure 1 — Relationship of the ISO 23150 series
This document specifies technology-specific interfaces for radar sensors as well as sensor clusters. The
[1]
interfaces bases on the generic specifications of the interfaces in ISO/FDIS 23150-1 . This document
references the generic specifications of signals for the interface header, the generic interface levels and the
profiles.
A radar sensor or sensor cluster may also implement (provide or receive) logical interfaces:
[2]
— on object level (see ISO/CD 23150-2 );
— for additional interfaces as supportive sensor interfaces and sensor input information interfaces (see
[3]
ISO/DIS 23150-20 ).
This document is not intended to replace the logical interface specifications of other documents in the
ISO 23150 series.
[1]
This document is based on the generic specifications in ISO/FDIS 23150-1 as shown in Figure 2:
— generic sensor cluster feature interface;
— generic sensor advanced detection interface;
— generic sensor detection interface;
— general level-independent profiles.

v
ISO/FDIS 23150-11:2026(en)
Key
scope of this document
Figure 2 — Interfaces in the scope of this document and the related interfaces of the ISO 23150
series
vi
FINAL DRAFT International Standard ISO/FDIS 23150-11:2026(en)
Road vehicles — Logical interface between sensors and data
fusion unit for automated driving functions —
Part 11:
Radar specific interfaces
1 Scope
This document is applicable to road vehicles with automated driving functions and specifies the technology-
specific logical interfaces for radar sensors or sensor clusters:
— feature level interface;
— advanced detection level interface;
— detection level interface.
This document does not provide electrical and mechanical interface specifications. Raw data interfaces are
also excluded.
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.
ISO/FDIS 23150-1, Road vehicles — Logical interface between sensors and data fusion unit for automated
driving functions — Part 1: General information and principles
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/FDIS 23150-1 apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at http://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
4 Abbreviated terms
A2I assign to interface
AD automated driving
ADLI advanced detection level interface
AER alternative entity representation
C conditional
ISO/FDIS 23150-11:2026(en)
D dimensional
DE default enumerators
DLI detection level interface
ECU electronic control unit
EES extended enumeration signal
EM error model
FLI feature level interface
ID identifier
IQR interquartile range
IR infrared
IRI international roughness index
IV implicit value
LL list length
LSG logical signal group
M mandatory
O optional
OLI object level interface
RDI radar detection interface
RL requirement level
SII sensor input interface
SSI supportive sensor interface
UTL unrolling tuple list
VRO value representation optimisation
5 Feature level
There is no FLI defined for radar sensors or sensor clusters.
6 Advanced detection level
There is no ADLI defined for radar sensors or sensor clusters.

ISO/FDIS 23150-11:2026(en)
7 Detection level
7.1 Radar detection interface
[1]
The generic specification of the detection level interfaces is defined in ISO/FDIS 23150-1 , Clause 10. The
radar detection interface shall base on the generic sensor detection interface as specified in ISO/FDIS 23150-
1, 10.2. Table 1 provides the logical structure of the RDI.
Table 1 — Radar detection interface structure
Structure Multiplicity Option
Radar detection header (7.2) 1
Detections Multiple Size type:
dynamic/fixed
The logical structure of the RDI shall be implemented in accordance with the interface definition specified
[1]
in Table 2, the signals as defined in Annex A and ISO/FDIS 23150-1 , Annex A. Furthermore, the generic
profiles as defined in 7.4 and in ISO/FDIS 23150-1 as well as the signal options defined in ISO/FDIS 23150-1,
Annex B shall also be considered.
Table 2 — Radar detection interface
RL LSG RL signal
LSG Signal Option
M/C/O M/C/O
Information: M Interface version ID {major, minor, M Profile: Uniqueness of inter-
interface patch} (ISO/FDIS 23150-1, A.1.2) face versioning (ISO/FDIS
23150-1, 6.5.1)
Interface ID (ISO/FDIS 23150-1, A.1.3) O Profile: Uniqueness of inter-
face versioning (ISO/FDIS
23150-1, 6.5.1)
Number of valid serving sensors (ISO/ M Profile: Uniqueness of inter-
FDIS 23150-1, A.1.4) face versioning (ISO/FDIS
23150-1, 6.5.1)
Optimise LL (ISO/FDIS
23150-1, B.1.2)
Alternative UTL (ISO/FDIS
23150-1, B.1.7)
Key: Sensor ID (ISO/FDIS
23150-1, A.1.5)
Size type: dynamic/fixed
Size #: Number of valid serving sensors (ISO/FDIS 23150-1, A.1.4)
Sensor ID (ISO/FDIS 23150-1, A.1.5) M Profile: Uniqueness of inter-
face versioning (ISO/FDIS
23150-1, 6.5.1)
Alternative VRO (ISO/FDIS
23150-1, B.1.4)
Time stamp – measurement (ISO/FDIS M
23150-1, A.1.6.2)
Cycle counter (ISO/FDIS 23150-1, O Redundancy (ISO/FDIS
A.1.7.1) 23150-1, B.1.3)
Signal: Time stamp – meas-
urement (ISO/FDIS 23150-
1, A.1.6.2)
a
The signal "Ambiguity grouping ID" (A.4.10) and the signal "Detection ambiguity probability" (A.4.11) are mandatory, if the
radar sensor technology has one or more technology-depending ambiguities. Different ambiguities correspond to signal "Radial
velocity ambiguity domain {begin, end}" (A.4.3), signal "Range ambiguity domain {begin, end}" (A.4.4), signal "Angle azimuth
ambiguity domain {begin, end}" (A.4.5) and/or signal "Angle elevation ambiguity domain {begin, end}" (A.4.6).

ISO/FDIS 23150-11:2026(en)
TTabablele 2 2 ((ccoonnttiinnueuedd))
RL LSG RL signal
LSG Signal Option
M/C/O M/C/O
Interface cycle time (ISO/FDIS 23150-1, O
A.1.8)
Interface cycle time – variation (ISO/ O
FDIS 23150-1, A.1.9)
Data qualifier (ISO/FDIS 23150-1, M Optimise DE (ISO/FDIS
A.1.10) 23150-1, B.1.8)
Optimise EES (ISO/FDIS
23150-1, B.1.9)
Detections
Detections M Recognised detections – capability (ISO/ O
information FDIS 23150-1, A.1.11.4)
Recognised detections – status (ISO/ O Redundancy (ISO/FDIS
FDIS 23150-1, A.1.12.4) 23150-1, B.1.3)
Signal: Recognised detec-
tions – capability (ISO/FDIS
23150-1, A.1.11.4)
Optimise DE (ISO/FDIS
23150-1, B.1.8)
Optimise EES (ISO/FDIS
23150-1, B.1.9)
Number of valid detections (ISO/FDIS M Optimise LL (ISO/FDIS
23150-1, A.1.13.4) 23150-1, B.1.2)
Alternative UTL (ISO/FDIS
23150-1, B.1.7)
Key: Position {radial dis-
tance, azimuth, elevation}
(ISO/FDIS 23150-1, A.2.43)
identifiers {azimuth, eleva-
tion}
Optimize AER (ISO/FDIS
23150-1, B.1.5)
Size type: dynamic/fixed
Size #: Number of valid detec
...

ISO/FDIS 23150-11
ISO/TC 22/SC 31
Secretariat: DIN
Date: 2025-12-122026-xx
Road vehicles — Logical interface between sensors and data fusion
unit for automated driving functions —
Part 11:
Radar specific interfaces
Véhicules routiers — Interface logique entre capteurs et unité de fusion de données pour les fonctions de
conduite automatisée —
Partie 11: Interfaces spécifiques de radar
FDIS stage
ISO/FDIS 23150-11:2026(en)
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO
at the address below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
E-mail: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO/FDIS 23150-11:2026(en)
Contents
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 Abbreviated terms . 3
5 Feature level . 4
6 Advanced detection level . 4
7 Detection level . 4
7.1 Radar detection interface . 4
7.2 Radar detection header . 9
7.3 Radar detection entity . 10
7.4 Radar detection profiles . 11
Annex A (normative) Radar interface signals . 12
Bibliography . 15

iii
ISO/FDIS 23150-11:2026(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The
procedures used to develop this document and those intended for its further maintenance are described in
the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of
ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see http://www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights
in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s)
which may be required to implement this document. However, implementers are cautioned that this may not
represent the latest information, which may be obtained from the patent database available at
http://www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement. For an explanation of the voluntary nature of standards, the meaning of ISO
specific terms and expressions related to conformity assessment, as well as information about ISO's adherence
to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
http://www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 31, Data
communication.
This first edition of ISO 23150-11, together with ISO 23150-1, ISO 23150-2, ISO 23150-12, ISO 23150-13, ISO
23150-14, ISO 23150-15 and ISO 23150-20, cancels and replaces ISO 23150:2023, which has been technically
revised.
The main changes are as follows:
— reorganisation of the document structure; use of generic interfaces, generic signals, generic profiles and
[1]
terms and definitions defined in ISO/FDIS 23150-1 as a basis for this document;
— specific collection of interfaces in separated documents; in this document specific collection of all
technology specific interfaces for radar;
— revise of the logical interfaces.
A list of all parts in the ISO 23150 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
ISO/FDIS 23150-11:2026(en)
Introduction
Vehicle environmental perception sensors (single sensor or sensor cluster) provide logical interfaces
according to the ISO 23150 series to the fusion unit or automated driving functions. The fusion unit generates
a surround model and interprets the scene around the vehicle based on the sensor data. Interfaces are defined
on different levels and described in a modular and semantic representation. The interfaces on feature level,
advanced detection level and detection level are technology specific and differ by each technology.
Figure 1 shows the schematic and contextual relationships between the documents relating to logical
interfaces of the ISO 23150 series.

Key
scope of this document
Figure 1 — Relationship of the ISO 23150 series
This document specifies technology-specific interfaces for radar sensors as well as sensor clusters. The
[1]
interfaces bases on the generic specifications of the interfaces in ISO/FDIS 23150-1 . This document
references the generic specifications of signals for the interface header, the generic interface levels and the
profiles.
A radar sensor or sensor cluster may also implement (provide or receive) logical interfaces:
[2]
— on object level (see ISO/CD 23150-2 );
— for additional interfaces as supportive sensor interfaces and sensor input information interfaces (see
[3]
ISO/DIS 23150-20 ).
This document is not intended to replace the logical interface specifications of other documents in the ISO
23150 series.
[1]
This document is based on the generic specifications in ISO/FDIS 23150-1 as shown in Figure 2:
— generic sensor cluster feature interface;
— generic sensor advanced detection interface;
— generic sensor detection interface;
— general level-independent profiles.
v
ISO/FDIS 23150-11:2026(en)
Key
scope of this document
Figure 2 — Interfaces in the scope of this document and the related interfaces of the ISO 23150 series
vi
ISO/FDIS 23150-11:2026(en)
Road vehicles — Logical interface between sensors and data fusion
unit for automated driving functions —
Part 11:
Radar specific interfaces
1 Scope
This document is applicable to road vehicles with automated driving functions and specifies the technology-
specific logical interfaces for radar sensors or sensor clusters:
— feature level interface;
— advanced detection level interface;
— detection level interface.
This document is based on the generic specifications in as shown in :
— generic sensor cluster feature interface;
— generic sensor advanced detection interface;
— generic sensor detection interface;
— general level-independent profiles.
ISO/FDIS 23150-11:2026(en)
Key
scope of this document
Figure 2 — Interfaces in the scope of this document and the related interfaces of the ISO 23150 series
This document does not provide electrical and mechanical interface specifications. Raw data interfaces are
also excluded.
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.
ISO/DISFDIS 23150-1, Road vehicles — Logical interface between sensors and data fusion unit for automated
driving functions — Part 1: General information and principles
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/DISFDIS 23150-1 apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at http://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
ISO/FDIS 23150-11:2026(en)
4 Abbreviated terms
A2I assign to interface
AD automated driving
ADLI advanced detection level interface
AER alternative entity representation
C conditional
D dimensional
DE default enumerators
DLI detection level interface
ECU electronic control unit
EES extended enumeration signal
EM error model
FLI feature level interface
ID identifier
IQR interquartile range
IR infrared
IRI international roughness index
IV implicit value
LL list length
LSG logical signal group
M mandatory
O optional
OLI object level interface
RDI radar detection interface
RL requirement level
SII sensor input interface
SSI supportive sensor interface
UTL unrolling tuple list
ISO/FDIS 23150-11:2026(en)
VRO value representation optimisation
5 Feature level
There is no FLI defined for radar sensors or sensor clusters.
6 Advanced detection level
There is no ADLI defined for radar sensors or sensor clusters.
7 Detection level
7.1 Radar detection interface
[1]
The generic specification of the detection level interfaces is defined in ISO/FDIS 23150-1 ISO/DIS 23150-1,,
Clause 10. The radar detection interface shall base on the generic sensor detection interface as specified in
ISO/DISFDIS 23150-1, 10.2. Table 1 provides the logical structure of the .RDI.
Table 1 — Radar detection interface structure
Structure Multiplicity Option
Radar detection header (7.2) 1
Detections Multiple Size type:
dynamic/fixed
The logical structure of the RDI shall be implemented in accordance with the interface definition specified in
[1]
Table 2, the signals as defined in Annex A and ISO/FDIS 23150-1 ISO/DIS 23150-1,, Annex A. Furthermore,
the generic profiles as defined in 7.4 and in ISO/DISFDIS 23150-1 as well as the signal options defined in
ISO/DISFDIS 23150-1, Annex B shall also be considered.
Table 2 — Radar detection interface
RL LSG RL signal
LSG Signal Option
M/C/O M/C/O
Information: M Interface version ID {major, minor, M Profile: Uniqueness of
interface patch} (ISO/DISFDIS 23150-1, A.1.2) interface versioning
(ISO/DISFDIS 23150-1,
6.5.1)
Interface ID (ISO/DISFDIS 23150-1, O Profile: Uniqueness of
A.1.3) interface versioning
(ISO/DISFDIS 23150-1,
6.5.1)
Number of valid serving sensors M Profile: Uniqueness of
(ISO/DISFDIS 23150-1, A.1.4) interface versioning
(ISO/DISFDIS 23150-1,
6.5.1)
Optimise LL (ISO/DISFDIS
23150-1, B.1.2)
Alternative UTL
(ISO/DISFDIS 23150-1,
B.1.7)
Key: Sensor ID
ISO/FDIS 23150-11:2026(en)
RL LSG RL signal
LSG Signal Option
M/C/O M/C/O
(ISO/DISFDIS 23150-1,
A.1.5)
Size type: dynamic/fixed
Size #: Number of valid serving sensors (ISO/DISFDIS 23150-1, A.1.4)
Sensor ID (ISO/DISFDIS 23150-1, M Profile: Uniqueness of
A.1.5) interface versioning
(ISO/DISFDIS 23150-1,
6.5.1)
Alternative VRO
(ISO/DISFDIS 23150-1,
B.1.4)
Time stamp – measurement M
(ISO/DISFDIS 23150-1, A.1.6.2)
Cycle counter (ISO/DISFDIS 23150-1, O Redundancy (ISO/DISFDIS
A.1.7.1) 23150-1, B.1.3)
Signal: Time stamp –
measurement
(ISO/DISFDIS 23150-1,
A.1.6.2)
Interface cycle time (ISO/DISFDIS O
23150-1, A.1.8)
Interface cycle time – variation O
(ISO/DISFDIS 23150-1, A.1.9)
Data qualifier (ISO/DISFDIS 23150-1, M Optimise DE (ISO/DISFDIS
A.1.10) 23150-1, B.1.8)
Optimise EES
(ISO/DISFDIS 23150-1,
B.1.9)
Detections
Detections M Recognised detections – capability O
information (ISO/DISFDIS 23150-1, A.1.11.4)
Recognised detections – status O Redundancy (ISO/DISFDIS
(ISO/DISFDIS 23150-1, A.1.12.4) 23150-1, B.1.3)
Signal: Recognised
detections – capability
(ISO/DISFDIS 23150-1,
A.1.11.4)
Optimise DE (ISO/DISFDIS
23150-1, B.1.8)
Optimise EES
(ISO/DISFDIS 23150-1,
B.1.9)
Number of valid detections M Optimise LL (ISO/DISFDIS
(ISO/DISFDIS 23150-1, A.1.13.4) 23150-1, B.1.2)
Alternative UTL
(ISO/DISFDIS 23150-1,
B.1.7)
Key: Position {radial
distance, azimuth,
elevation} (ISO/DISFDIS
ISO/FDIS 23150-11:2026(en)
RL LSG RL signal
LSG Signal Option
M/C/O M/C/O
23150-1, A.2.43)
identifiers {azimuth,
elevation}
Optimize AER
(ISO/DISFDIS 23150-1,
B.1.5)
Size type: dynamic/fixed
Size #: Number of valid detections (ISO/DISFDIS 23150-1, A.1.13.4)
O Mode type (A.4.2) M Alternative VRO
↪ Detection
(ISO/DISFDIS 23150-1,
information
B.1.4)
mode type
Optimise AER
(ISO/DISFDIS 23150-1,
B.1.5)
M Radial velocity ambiguity domain C Optimise AER
↪ Detection
{begin, end} (A.4.3) (ISO/DISFDIS (ISO/DISFDIS 23150-1,
information
23150-1, B.1.5)
ambiguity
B.2.2) a
domain
Relevant:
radar
technology
specific
Range ambiguity domain {begin, C Optimise AER
end} (A.4.4) (ISO/DISFDIS (ISO/DISFDIS 23150-1,
23150-1, B.1.5)
B.2.2) a
Relevant:
radar
technology
specific
Angle azimuth ambiguity domain C Optimise AER
{begin, end} (A.4.5) (ISO/DISFDIS (ISO/DISFDIS 23150-1,
23150-1, B.1.5)
B.2.2)
a
Relevant:
radar
technology
specific
Angle elevation ambiguity domain C Optimise AER
{begin, end} (A.4.6) (ISO/DISFDIS (ISO/DISFDIS
...