ISO 23150-11:2026

• Abstract:

  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.

• Status: Published
• Publication Date: 28-Jun-2026
• 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: 6060 - International Standard published
• Start Date: 29-Jun-2026
• Due Date: 09-Oct-2026
• Completion Date: 29-Jun-2026

• 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, published by the International Organization for Standardization (ISO), is a key international standard focusing on the logical interfaces between radar sensors or sensor clusters and data fusion units in road vehicles with automated driving functions. This part of the ISO 23150 series specifies how radar sensor data is semantically modeled and communicated at the interface level, ensuring interoperability, consistency, and integration for advanced automotive applications.

The scope of ISO 23150-11:2026 is strictly limited to technology-specific logical data interfaces for radar, including feature level, advanced detection level, and detection level interfaces. It is important to note that this standard does not address electrical or mechanical interface details, nor does it cover raw radar data exchange.

Key Topics

• Technology-specific Logical Interfaces
  Defines structured, modular data exchange at various levels, specific to radar sensors and sensor clusters.
• Detection Level Interface (DLI)
  Central to this standard, the radar detection interface (RDI) establishes how detected objects and scenarios are logically represented for fusion and automated decision-making.
• Ambiguity Handling
  Supports detailed representations of radar ambiguities (e.g., range, velocity, angle) to enhance confidence in multi-sensor fusion systems.
• Data Structure and Profiling
  Specifies the use of unique identifiers, mode types, domains for resolution limits, and probability metrics, optimized for seamless sensor integration in vehicle perception systems.
• Interface Modularity
  The interfaces are designed for modular, semantic representation, facilitating scalability and adaptation to different radar technologies within the automated driving stack.

Applications

Automotive and Automated Driving

The standard is essential for:

• ADAS and Automated Vehicles
  Enables robust, interoperable communication between diverse radar sensor suites and the vehicle’s central data fusion or perception units, which is fundamental for Advanced Driver Assistance Systems (ADAS) and higher levels of driving automation.
• Sensor Fusion Architectures
  By establishing a harmonized logical layer, ISO 23150-11 aids in integrating radar with other sensors (Lidar, cameras, ultrasonic, etc.), allowing for richer, more accurate environmental modeling and decision-making.
• Development and Validation
  Provides a common reference point for vehicle manufacturers, Tier 1 suppliers, and technology providers when designing, testing, and validating automated driving functions that depend on radar-based perception.

System Interoperability

The adoption of this standard allows different components and systems-often from multiple suppliers-to communicate efficiently, minimizing integration effort and reducing the risk of misinterpretation of sensor data.

Related Standards

ISO 23150-11:2026 is one part of a broader family, facilitating logical sensor data exchange for automated driving:

• ISO 23150-1:2026 – General information and principles for logical interfaces
• ISO 23150-2 – Object level interfaces
• ISO 23150-12 – Lidar specific interfaces
• ISO 23150-13 – Camera specific interfaces
• ISO 23150-14 – Ultrasonic specific interfaces
• ISO 23150-15 – Microphone specific interfaces
• ISO 23150-20 – Supportive and sensor input interfaces

This alignment ensures that radar-specific logical interfaces can coexist and integrate with those from other sensor modalities, forming a standardized, multi-sensor framework for the future of automated road vehicles.

---

By implementing ISO 23150-11:2026, stakeholders in the automotive and mobility sectors can ensure reliable, future-proof sensor integration and contribute to the seamless development of safe, automated driving systems using advanced radar technology.

International
Standard
ISO 23150-11
First edition
Road vehicles — Logical interface
2026-06
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
Reference number
© ISO 2026
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 2
5 Feature level . 2
6 Advanced detection level . 3
7 Detection level . 3
7.1 Radar detection interface .3
7.2 Radar detection header .7
7.3 Radar detection entity .8
7.4 Radar detection profiles .8
Annex A (normative) Radar interface signals . 9
Bibliography .12

iii
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.
[1] [2] [3]
This first edition of ISO 23150-11, together with ISO 23150-1 , ISO 23150-2 , ISO 23150-12 , ISO 23150-13
[4] [5] [6] [7]
, 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 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
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 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 23150-2 );
— for additional interfaces as supportive sensor interfaces and sensor input information interfaces (see
[7]
ISO 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 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
Key
scope of this document
Figure 2 — Interfaces in the scope of this document and the related interfaces of the ISO 23150
series
vi
International Standard ISO 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 23150-1, Road vehicles — Logical interface between sensors and data fusion unit for automated driving
functions — Part 1: General information and principles
ISO 23150-1:2026, 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 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
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.
7 Detection level
7.1 Radar detection interface
[8]
The generic specification of the detection level interfaces is defined in ISO 23150-1:2026 , Clause 10. The
radar detection interface shall base on the generic sensor detection interface as specified in ISO 23150-1:2026,
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
[8]
in Table 2, the signals as defined in Annex A and ISO 23150-1:2026 , Annex A. Furthermore, the generic
[1]
profiles as defined in 7.4 and in ISO 23150-1 as well as the signal options defined in ISO 23150-1:2026,
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
[8]
interface patch} (ISO 23150-1:2026 , A.1.2) interface versioning (ISO
[8]
23150-1:2026 , 6.5.1)
[8]
Interface ID (ISO 23150-1:2026 , A.1.3) O Profile: Uniqueness of
interface versioning (ISO
[8]
23150-1:2026 , 6.5.1)
Number of valid serving sensors (ISO M Profile: Uniqueness of
[8]
23150-1:2026 , A.1.4) interface versioning (ISO
[8]
23150-1:2026 , 6.5.1)
Optimise LL (ISO 23150-
[8]
1:2026 , B.1.2)
Alternative UTL (ISO
[8]
23150-1:2026 , B.1.7)
Key: Sensor ID (ISO 23150-
[8]
1:2026 , A.1.5)
Size type: dynamic/fixed
[8]
Size #: Number of valid serving sensors (ISO 23150-1:2026 , A.1.4)
[8]
Sensor ID (ISO 23150-1:2026 , M Profile: Uniqueness of
A.1.5) interface versioning (ISO
[8]
23150-1:2026 , 6.5.1)
Alternative VRO (ISO
[8]
23150-1:2026 , B.1.4)
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).

TTabablele 2 2 ((ccoonnttiinnueuedd))
RL LSG RL signal
LSG Signal Option
M/C/O M/C/O
Time stamp – measurement (ISO 23150- M
[8]
1:2026 , A.1.6.2)
[8]
Cycle counter (ISO 23150-1:2026 , O Redundancy (ISO 23150-
[8]
A.1.7.1) 1:2026 , B.1.3)
Signal: Time stamp – meas-
urement (ISO 23150-1:2026
[8]
, A.1.6.2)
Interface cycle time (ISO 23150-1:2026 O
[8]
, A.1.8)
Interface cycle time – variation (ISO O
[8]
23150-1:2026 , A.1.9)
[8]
Data qualifier (ISO 23150-1:2026 , M Optimise DE (ISO 23150-
[8]
A.1.10) 1:2026 , B.1.8)
Optimise EES (ISO 23150-
[8]
1:2026 , B.1.9)
Detections
Detections M Recognised detections – capability (ISO O
[8]
information 23150-1:2026 , A.1.11.4)
Recognised detections – status (ISO O Redundancy (ISO 23150-
[8] [8]
23150-1:2026 , A.1.12.4) 1:2026 , B.1.3)
Signal: Recognised de-
tections – capability (ISO
[8]
23150-1:2026 , A.1.11.4)
Optimise DE (ISO 23150-
[8]
1:2026 , B.1.8)
Optimise EES (ISO 23150-
[8]
1:2026 , B.1.9)
Number of valid detections (ISO 23150- M Optimise LL (ISO 23150-
[8] [8]
1:2026 , A.1.13.4) 1:2026 , B.1.2)
Alternative UTL (ISO
[8]
23150-1:2026 , B.1.7)
Key: Position {radial dis-
tance, azimuth, elevation}
[8]
(ISO 23150-1:2026 ,
A.2.43) identifiers {azi-
muth, elevation}
Optimize AER (ISO 23150-
[8]
1:2026 , B.1.5)
Size type: dynamic/fixed
[8]
Size #: Number of valid detections (ISO 23150-1:2026 , A.1.13.4)
↪ Detection in- O Mode type (A.4.2) M Alternative VRO (ISO
[8]
formation mode 23150-1:2026 , B.1.4)
type
Optimise AER (ISO 23150-
[8]
1:2026 , B.1.5)
↪ Detection M Radial velocity ambiguity domain C (ISO 23150- Optimise AER (ISO 23150-
[8] [8]
information am- {begin, end} (A.4.3) 1:2026 , 1:2026 , B.1.5)
biguity domain B.2.2) a
Relevant: radar
technology
specific
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).

TTabablele 2 2 ((ccoonnttiinnueuedd))
RL LSG RL signal
LSG Signal Option
M/C/O M/C/O
Range ambiguity domain {begin, C (ISO 23150- Optimise AER (ISO 23150-
[8] [8]
end} (A.4.4) 1:2026 , 1:2026 , B.1.5)
a
B.2.2)
Relevant: radar
technology
specific
Angle azimuth ambiguity domain C (ISO 23150- Optimise AER (ISO 23150-
[8] [8]
{begin, end} (A.4.5) 1:2026 , 1:2026 , B.1.5)
a
...