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EN 16803-4:2024

(Main)

Space - Use of GNSS-based positioning for road Intelligent Transport Systems (ITS) - Part 4 : Definitions and system engineering procedures for the design and validation of test scenarios

Space - Use of GNSS-based positioning for road Intelligent Transport Systems (ITS) - Part 4 : Definitions and system engineering procedures for the design and validation of test scenarios

Scope of this NWI is to give keys and to propose methods to GNSS-specialized laboratories, enabling them to design and produce valuable scenario using the "record and replay" technique in order to assess GNSS-based positioning system.
Already published parts (1-2-3) are mainly dedicated to respectively :
-Definitions and system engineering procedures for the establishment and assessment of performances
-Assessment of basic performances of GNSS-based positioning terminals
-Assessment of security performances of GNSS-based positioning terminals
Part4- Definitions and system engineering procedures for the design and validation of test scenarios- will be based on outcomes from GPSTART2 (SA-CEN/2018-12) which was funded by EC to tackle this specific focus (among others).

Raumfahrt - Anwendung von GNSS-basierter Ortung für Intelligente Transportsysteme (ITS) im Straßenverkehr - Teil 4: Definitionen und systemtechnische Verfahren für den Entwurf und die Validierung von Testszenarien

Dieses Dokument wendet sich hauptsächlich an Laboratorien, die auf GNSS spezialisiert und für die Erstellung von Referenz-Prüfszenarien zur Wiedergabe durch andere Benutzer wie universell aufgestellte HF-Labore zuständig sind. Es ist ein grundlegender Schwerpunkt, in der Lage zu sein, einheitliche Prüfszenarien bereitzustellen. Tatsächlich muss der Prozess selbst, im Kontext der Zertifizierung des GNSS-Empfängers, unabhängig von dem Laboratorium sein, das das Szenario ausgelegt und erstellt hat. In anderen Worten ist der Grad der Konformität jedes GNSS-basierten Ortungsendgeräts (GBPT) der gleiche, welches konkrete Szenario auch verwendet wird. Die Verwendung eines bestimmten Stadtszenarios von einem auf GNSS spezialisierten Laboratoriums A muss zu der gleichen Schlussfolgerung führen wie die Verwendung eines anderen bestimmten Stadtszenarios von einem auf GNSS spezialisierten Laboratorium B. Dies ist das wirkliche Ziel dieses Dokuments: allen auf GNSS spezialisierten Laboratorien Anforderungen und Richtlinien für die Erstellung von interoperablen Prüfszenarien zu geben.
Deshalb stellt es Anforderungen und Richtlinien zu folgenden Themen zur Verfügung:
[...]

Espace - Utilisation du positionnement GNSS pour les systèmes de transport routier intelligents (ITS) - Partie 4: Définitions et procédures d'ingénierie système pour la conception et la validation de scénarios d'essai

Vesolje - Uporaba sistemov globalne satelitske navigacije (GNSS) za ugotavljanje položaja pri inteligentnih transportnih sistemih (ITS) v cestnem prometu - 4. del: Opredelitve in postopki sistemskega inženiringa za načrtovanje in potrjevanje preskusnih scenarijev

General Information

Status
Published
Publication Date
19-Nov-2024
ICS
03.220.20 - Road transport
33.060.30 - Radio relay and fixed satellite communications systems
35.240.60 - IT applications in transport
Technical Committee
CEN/CLC/TC 5 - Space
Drafting Committee
CEN/CLC/TC 5/WG 1 - Navigation and positioning receivers for road applications
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
20-Nov-2024
Due Date
12-Feb-2025
Completion Date
20-Nov-2024
Mandate
M/496 - Mandate addressed to CEN, CENELEC and ETSI to develop standardisation regarding space industry (Phase 3 of the process)
Ref Project
SIST EN 16803-4:2025 - Space - Use of GNSS-based positioning for road Intelligent Transport Systems (ITS) - Part 4 : Definitions and system engineering procedures for the design and validation of test scenarios

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SLOVENSKI STANDARD
01-januar-2025
Vesolje - Uporaba sistemov globalne satelitske navigacije (GNSS) za ugotavljanje
položaja pri inteligentnih transportnih sistemih (ITS) v cestnem prometu - 4. del:
Opredelitve in postopki sistemskega inženiringa za načrtovanje in potrjevanje
preskusnih scenarijev
Space - Use of GNSS-based positioning for road Intelligent Transport Systems (ITS) -
Part 4 : Definitions and system engineering procedures for the design and validation of
test scenarios
Raumfahrt - Anwendung von GNSS-basierter Ortung für Intelligente Transportsysteme
(ITS) im Straßenverkehr - Teil 4: Definitionen und systemtechnische Verfahren für den
Entwurf und die Validierung von Testszenarien
Espace - Utilisation du positionnement GNSS pour les systèmes de transport routier
intelligents (ITS) - Partie 4: Définitions et procédures d'ingénierie système pour la
conception et la validation de scénarios d'essai
Ta slovenski standard je istoveten z: EN 16803-4:2024
ICS:
03.220.20 Cestni transport Road transport
33.060.30 Radiorelejni in fiksni satelitski Radio relay and fixed satellite
komunikacijski sistemi communications systems
35.240.60 Uporabniške rešitve IT v IT applications in transport
prometu
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 16803-4

NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2024
ICS 33.060.30; 35.240.60
English version
Space - Use of GNSS-based positioning for road Intelligent
Transport Systems (ITS) - Part 4 : Definitions and system
engineering procedures for the design and validation of
test scenarios
Espace - Utilisation du positionnement GNSS pour les Raumfahrt - Anwendung von GNSS-basierter Ortung
systèmes de transport routier intelligents (ITS) - Partie für Intelligente Transportsysteme (ITS) im
4: Définitions et procédures d'ingénierie système pour Straßenverkehr - Teil 4: Definitionen und
la conception et la validation de scénarios d'essai systemtechnische Verfahren für den Entwurf und die
Validierung von Testszenarien
This European Standard was approved by CEN on 13 October 2024.

CEN and CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical
references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to
any CEN and CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN and CENELEC member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN and CENELEC members are the national standards bodies and national electrotechnical committees of Austria, Belgium,
Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia,
Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and United Kingdom.

CEN-CENELEC Management Centre:
Rue de la Science 23, B-1040 Brussels
© 2024 CEN/CENELEC All rights of exploitation in any form and by any means Ref. No. EN 16803-4:2024 E
reserved worldwide for CEN national Members and for
CENELEC Members.
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 7
2 Normative references . 8
3 Terms, definitions and acronyms . 8
3.1 Terms and definitions . 8
3.2 Acronyms . 10
4 Technical documentation for designing scenario . 11
4.1 Technical documentation for “R&R” . 11
4.1.1 General. 11
4.1.2 Expression of needs . 12
4.1.3 Test specifications . 12
4.1.4 Test plan . 13
4.1.5 Field test condition and validation . 29
4.2 List of documents to produce for simulation scenario . 30
4.2.1 General. 30
4.2.2 Types of scenarios to produce (on “R&R” base or manual for simulators) . 30
4.2.3 Technical documentation . 32
5 Requirements for collecting data . 35
5.1 Identification of the technical documentation . 35
5.1.1 General. 35
5.1.2 Test plan . 35
5.1.3 Technical documentation on instruments . 35
5.1.4 Field test validation . 35
5.2 Requirements for human resources . 35
5.3 Requirements for tests platform . 36
5.3.1 Representativeness of the platform . 36
5.3.2 Installation requirements . 37
5.4 Requirements for RTMeS . 38
5.4.1 General. 38
5.4.2 Type of data . 39
5.4.3 Inertial navigation system requirements . 40
5.5 Requirement for GNSS signals digitization . 48
5.5.1 General. 48
5.5.2 IQ data format . 48
5.5.3 Signals digitizer properties . 49
5.5.4 Signals digitizer installation and RF components . 51
5.5.5 Choice of the antenna . 52
5.6 Requirements for GNSS constellations simulator . 52
5.7 Requirements for benchmark GNSS receiver . 53
5.8 Requirement for GBPT embedded . 54
5.9 Requirements for other sensors. 55
5.9.1 General. 55
5.9.2 Initial sensors . 55
5.9.3 Optical sensors . 56
5.9.4 GNSS augmentation/correction data . 57
5.10 Requirements for control video . 57
6 Requirements for data validation . 58
6.1 Validation of the field test . 58
6.2 Validation of data for reference trajectory . 59
6.2.1 General . 59
6.2.2 Validation of GNSS data . 60
6.2.3 Validation of inertial measurements and hybridized trajectory . 61
6.2.4 Estimation of the uncertainties . 63
6.3 Validation of digitized GNSS signals . 64
6.3.1 General . 64
6.3.2 Analysis of RF signals power . 64
6.3.3 Analysis of effects on benchmark GNSS receiver . 68
6.4 Validation of sensors inertial measurements . 73
6.5 Validation of corrections data (NRTK, PPP…) . 77
6.5.1 General . 77
6.5.2 Example of validation of NRTK correction . 78
6.6 Characterization of the scenario . 80
6.6.1 General . 80
6.6.2 Dynamics analysis . 80
6.6.3 GNSS measurements analysis . 81
Annex A (informative) Impact of multi-constellation on RTK results . 85
Annex B (normative) PPK data validation . 89
Annex C (normative) Inertial measurements and hybridized trajectory validation . 93
Annex D (informative) How lever arms error could affect final reference trajectory . 98
Annex E (normative) Impact of C/N0 difference on measurements availability . 102
Annex F (normative) Scenario characterization example .
...

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EN 16803-1:2020(Main)
Space - Use of GNSS-based positioning for road Intelligent Transport Systems (ITS) - Part 1: Definitions and system engineering procedures for the establishment and assessment of performances
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EN 16803-1 addresses the final stage of the performance management approach, i.e. the assessment of the whole Road ITS system performance equipped with a given Positioning System, using the Sensitivity analysis method.
EN 16803-1 addresses the identification and the definition the positioning performance features and metrics required for Positioning System assessment.
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This document shall be considered as a complementary standard to EN 16803-2 that is intended to assessment of the performances of a GBPT placed in real-life or simulated road environments. This document is instead specifically targeting security attacks such as interferences, jamming, meaconing or spoofing. This document cannot be applied independently from EN 16803-2 that describes in details the general methodology of the assessment procedure.
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Depending on the case (jamming or spoofing), these scenarios are composed of data sets combining either real life recorded SIS and jamming signals or simulated SIS and spoofing signals. The reason for that will be explained in Clause 6.
Although a high-level categorization of GNSS attacks is given in Annex A, a comprehensive and detailed categorization of possible GNSS attacks is out of the scope of this document.
It is not the aim of this EN to standardize the record procedure neither to define the specific requirements for the generation of the attack scenarios. The record procedure itself and its quality framework for accredited GNSS-specialized laboratories (Lab-A), with the detailed definition of standardized attack scenarios, will be totally and precisely described in EN 16803-4 (under preparation). The list of attack scenarios will have to be regularly updated considering the evolution of GNSS technologies, emerging threats, and countermeasures.

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Like the other ENs of the whole series, this EN deals with the use of GNSS-based positioning terminals (GBPT) in road Intelligent Transport Systems (ITS). GNSS-based positioning means that the system providing position data, more precisely Position, Velocity and Time (PVT) data, comprises at least a GNSS receiver and, potentially, for performance improvement, other additional sensor data or sources of information that can be hybridized with GNSS data.
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"Record and Replay" (R&R) tests consist in replaying in a laboratory environment GNSS SIS data, and potentially additional sensor data, recorded in specific operational conditions thanks to a specific test vehicle. The dataset comprising GNSS SIS data and potential sensor data resulting from these field tests, together with the corresponding metadata description file, is called a "test scenario". A dataset is composed of several data files.
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The objective is to analyse the security issues that can occur at the GNSS SIS level. In order to do so, a full taxonomy of the GNSS SIS attacks are proposed and GNSS SIS attack security model are elaborated and classified. Security metrics for the validation of the GBPT robustness performances are defined.
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"Record and Replay" (R&R) tests consist in replaying in a laboratory environment GNSS SIS data, and potentially additional sensor data, recorded in specific operational conditions thanks to a specific test vehicle. The dataset comprising GNSS SIS data and potential sensor data resulting from these field tests, together with the corresponding metadata description file, is called a "test scenario". A dataset is composed of several data files.
This EN 16803-3 addresses the "Replay" part of the test scenario data set. It does not address the "Record" part, although it describes as informative information the whole R&R process. This "Record" part will be covered by EN 16803-4 under preparation.
Although the EN 16803 series concerns the GNSS-based positioning terminals and not only the GNSS receivers, the present release of this EN addresses only the replay process of GNSS only terminals. The reason is that the process of replaying in the lab additional sensor data, especially when these sensors are capturing the vehicle’s motion, is generally very complex and not mature enough to be standardized today. It would need open standardized interfaces in the GBPT as well as standardized sensor error models and is not ready to be standardized. But, the procedure described in the present EN has been designed to be extended to GBPT hybridizing GNSS and vehicle sensors in the future.
This EN 16803-3 does not address R&R tests when specific radio frequency signals simulating security attacks are added to the SIS. This case is specifically the topic of EN 16803-3.
Once standardized assessment tests procedures have been established, it is possible to set minimum performance requirements for various intelligent transport applications but it makes sense to separate the assessment tests issue from minimum performance requirements, because the same test procedure may be applicable to many applications, but the minimum performance requirements typically vary from one application to another. So, this EN does not set minimum performance requirements for any application.

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SIST EN 16803-1:2020

EN 16803-1 addresses the final stage of the performance management approach, i.e. the assessment of the whole Road ITS system performance equipped with a given Positioning System, using the Sensitivity analysis method.
EN 16803-1 addresses the identification and the definition the positioning performance features and metrics required for Positioning System assessment.
This document gives definitions of the various items to be considered when specifying an Operational scenario and provides a method to compare finely two environments with respect to their effects on GNSS positioning performance.
This document gives definition of the most important terms used all along the document and describes the architecture of a Road ITS system based on GNSS as it is intended in this standard.
This document does not address:
-   the performance metrics to be used to define the Road ITS system performance requirements, highly depending on the use case and the will of the owner of the system;
-   the performance requirements of the various kinds of Road ITS systems;
-   the tests that are necessary to assess Positioning System performances (Record and Replay tests for this purpose will be addressed by prEN 16803-2 and prEN 16803-3.

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