ISO 23150-11:2026
(Main)Road vehicles — Logical interface between sensors and data fusion unit for automated driving functions — Part 11: Radar specific interfaces
- 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
- Technical Committee
- ISO/TC 22/SC 31 - Data communication
- Current Stage
- 6060 - International Standard published
- Start Date
- 29-Jun-2026
- Due Date
- 09-Oct-2026
- Completion Date
- 29-Jun-2026
ISO 23150-11:2026 is an ISO standard for road vehicles with automated driving functions. It specifies the technology-specific logical interfaces for radar sensors or sensor clusters, so engineers can exchange radar detection data with a data fusion unit in a consistent way.
What does ISO 23150-11:2026 specify?
ISO 23150-11:2026 specifies radar-specific logical interfaces at the feature level, advanced detection level, and detection level for road vehicles with automated driving functions. It covers logical data exchange only - not electrical or mechanical interfaces, and not raw data interfaces.
The document is organized into scope, normative references, terms and abbreviations, feature level, advanced detection level, detection level, and a normative annex with radar interface signals.
| Annex | What it covers |
|---|---|
| Annex A (normative) | Radar interface signals, including header signals and detection-level entity signals |
Clauses 5 and 6 state that no feature level interface (FLI) or advanced detection level interface (ADLI) is defined for radar sensors or sensor clusters. In practice, that means radar implementation work in this part centers on the detection level interface (DLI).
What are the key requirements of ISO 23150-11:2026?
ISO 23150-11:2026 makes the radar detection level interface the core of the document. Clause 7 builds it on the generic sensor detection interface in ISO 23150-1:2026, so implementers use the shared ISO 23150 framework and then apply the radar-specific rules here.
Radar detection interface structure
Clause 7.1 defines the radar detection interface (RDI) as a logical structure with a radar detection header and multiple detections. The header and detection entries must follow the specified signal grouping, with generic profiles and signal options from ISO 23150-1:2026 also taken into account. In practice, this gives suppliers a common message structure to implement and validate.
Header and versioning
Clause 7.2 requires the radar detection header to use the generic sensor detection header from ISO 23150-1:2026, with radar-specific adaptation. The header carries items such as interface version ID, number of valid serving sensors, sensor ID, time stamp - measurement, data qualifier, and the count of valid detections. This matters because the fusion unit needs to identify the sending sensor, understand the data timing, and know how many detections to expect.
Detection entity content
Clause 7.3 says each radar detection shall describe a measured detection and shall include status, information, position, and dynamics. The entity status uses existence probability - detection level, detection ID, optional object ID reference, and time stamp difference - detection level. This is what lets downstream software treat each radar detection as a structured item rather than an isolated number.
Radar-specific signals and ambiguities
Annex A defines radar-specific detection signals such as mode type, radial velocity ambiguity domain, range ambiguity domain, angle azimuth ambiguity domain, angle elevation ambiguity domain, radar cross section, multi target probability, ambiguity grouping ID, and detection ambiguity probability. The ambiguity signals matter when one measurement can correspond to more than one real-world interpretation, because they let the receiver group candidates and judge confidence.
Profiles
Clause 7.4 states that no specific profiles are defined for RDI. Implementers therefore rely on the generic profiles in ISO 23150-1:2026 where needed.
What terms does ISO 23150-11:2026 define?
ISO 23150-11:2026 uses a short set of abbreviations to describe its interface levels and grouping concepts.
- Automated driving (AD) - the vehicle function area addressed by this series.
- Feature level interface (FLI) - a feature-level interface, which is not defined for radar here.
- Advanced detection level interface (ADLI) - an advanced detection-level interface, which is not defined for radar here.
- Detection level interface (DLI) - the radar interface level defined in this part.
- Radar detection interface (RDI) - the specific detection-level interface for radar sensors or sensor clusters.
- Logical signal group (LSG) - a grouped set of signals that belong together in the interface structure.
- Object level interface (OLI) - a related interface level named in the series for object-level exchange.
Who uses ISO 23150-11:2026?
ISO 23150-11:2026 is used by radar sensor suppliers, sensor-cluster developers, automated driving system architects, data fusion unit teams, and vehicle OEM integration engineers. It is also relevant to verification, validation, quality, and procurement teams checking whether a radar interface matches the ISO 23150 framework.
What changed in ISO 23150-11:2026 from the previous edition?
ISO 23150-11:2026 is the first edition of this part and, together with ISO 23150-1, ISO 23150-2, ISO 23150-12, ISO 23150-13, ISO 23150-14, ISO 23150-15 and ISO 23150-20, it cancels and replaces ISO 23150:2023. The stated changes are a reorganization around generic interfaces, generic signals, generic profiles, and terms from ISO 23150-1; separate documents for technology-specific interface collections; and revised logical interfaces.
Which standards are used with ISO 23150-11:2026?
| Standard | What it contributes |
|---|---|
| ISO 23150-1:2026 | General information and principles, plus the generic sensor interfaces, signals, profiles, and terms used as the base for this part |
| ISO 23150-2 | Object level interfaces that a radar sensor or sensor cluster may also implement |
| ISO 23150-20 | Supportive sensor interfaces and sensor input interfaces that may be used alongside this part |
| ISO 23150-12 | Lidar specific interfaces in the ISO 23150 series |
| ISO 23150-13 | Camera specific interfaces in the ISO 23150 series |
| ISO 23150-14 | Ultrasonic specific interfaces in the ISO 23150 series |
| ISO 23150-15 | Microphone specific interfaces in the ISO 23150 series |
What does the ISO 23150-11:2026 document contain?
ISO 23150-11:2026 contains the radar interface structure, the header layout, the detection entity grouping, and the radar-specific signals used at detection level. Annex A gives the signal definitions and value types for radar detection data, including the ambiguity-related signals that matter for interpretation and confidence handling.
Relations
- Effective Date
- 28-Oct-2023
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Frequently Asked Questions
ISO 23150-11:2026 is a standard published by the International Organization for Standardization (ISO). Its full title is "Road vehicles — Logical interface between sensors and data fusion unit for automated driving functions — Part 11: Radar specific interfaces". This standard covers: 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.
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.
ISO 23150-11:2026 is classified under the following ICS (International Classification for Standards) categories: 43.040.15 - Car informatics. On board computer systems. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 23150-11:2026 has the following relationships with other standards: It is inter standard links to ISO 23150:2023. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO 23150-11:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
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
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CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
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,
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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)
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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
...