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GB/T 45086.1-2024: Technical requirements and test methods for on-board positioning system - Part 1: Satellite positioning
GB/T 45086.1-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.10
CCS T 36
Technical requirements and test methods for on-board
positioning system - Part 1: Satellite positioning
ISSUED ON: NOVEMBER 28, 2024
IMPLEMENTED ON: JUNE 01, 2025
Issued by: State Administration for Market Regulation;
National Standardization Administration.
Table of Contents
Foreword ... 3
Introduction ... 5
1 Scope ... 6
2 Normative references ... 6
3 Terms and definitions ... 7
4 Abbreviations ... 9
5 Technical requirements ... 10
6 Test method ... 25
7 Inspection rules ... 47
Appendix A (Informative) General statement provisions ... 49
Appendix B (Normative) RF signal coordination parameter specifications ... 56
Appendix C (Normative) Cold start state setting method for on-board satellite
positioning system ... 57
Appendix D (Normative) On-board satellite positioning system test scenario ... 58
Appendix E (Normative) Data processing method for positioning accuracy ... 67
Appendix F (Normative) Data processing method for speed accuracy ... 69
Appendix G (Normative) Data processing method for timing accuracy ... 70
Appendix H (Informative) Road test of on-board satellite positioning system ... 71
Appendix I (Informative) Anechoic chamber simulation test of on-board satellite
positioning system ... 78
Appendix J (Informative) Durability test calculation model ... 81
Technical requirements and test methods for on-board
positioning system - Part 1: Satellite positioning
1 Scope
This document specifies the technical requirements for on-board satellite positioning
systems and describes the corresponding test methods.
This document applies to on-board satellite positioning systems.
2 Normative references
The contents of the following documents constitute essential clauses of this document
through normative references in the text. Among them, for dated references, only the
version corresponding to that date applies to this document; for undated references, the
latest version (including all amendments) applies to this document.
GB/T 2828.1 Sampling procedures for inspection by attributes -- Part 1: Sampling
schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 16422.2-2022 Plastics - Methods of exposure to laboratory light sources - Part
2: Xenon-arc lamps
GB/T 18655-2018 Vehicles, boats and internal combustion engines - Radio
disturbance characteristics - Limits and methods of measurement for the protection
of on-board receivers
GB/T 19951-2019 Road vehicles - Disturbances test methods for
electrical/electronic component from electrostatic discharge
GB/T 21437.2-2021 Road vehicles - Test method of electrical disturbances from
conduction and coupling - Part 2: Electrical transient conduction along supply lines
only
GB/T 21437.3-2021 Road vehicles - Test method of electrical disturbances from
conduction and coupling - Part 3: Electrical transient transmission by capacitive and
inductive coupling via lines other than supply lines
GB/T 28046.1-2011 Road vehicles - Environmental conditions and testing for
electrical and electronic equipment - Part 1: General
GB/T 28046.2-2019 Road vehicles - Environmental conditions and testing for
GNSS: Global Navigation Satellite System
GPS: Global Positioning System
HDOP: Horizontal Dilution of Precision
ID: Identity
PDOP: Positional Dilution of Precision
5 Technical requirements
5.1 Functional requirements
5.1.1 Output
Perform the test in accordance with 6.3.1. Under the test conditions of this document,
the output of the on-board satellite positioning system meets the following requirements.
a) It shall be able to output GGA, RMC, VTG, GSV, GSA messages; its format is
shown in Appendix A.
b) The validity mark and mode indication in the output information of GGA, RMC,
VTG, GSA shall be able to indicate the validity of the positioning and timing
information. When the on-board satellite positioning system cannot locate or
provide timing, the validity mark and mode indication in the output information
of GGA, RMC, VTG, GSA shall be invalid. The proportion of valid data shall not
be less than 99.99%.
c) The output update rate of GGA, RMC, VTG, GSA, GSV shall not be less than 1
Hz.
5.1.2 Mode
5.1.2.1 General requirements
The on-board satellite positioning system shall at least support BeiDou single mode.
When the on-board satellite positioning system works in BeiDou multi-mode, it shall
be tested according to 6.3.2.1 and shall have the function of switching to BeiDou single
mode.
5.1.2.2 BeiDou multi-mode
5.1.2.2.1 General
Perform the test in accordance with 6.3.2.2.1. The on-board satellite positioning system
shall support BeiDou multi-mode, i.e., BeiDou independent mode or BeiDou priority
5.2.1.1.1 Open sky scenario
5.2.1.1.1.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Perform the test in accordance with 6.4.1.1.1.1 and 6.4.2.1.1.1. The horizontal
positioning accuracy of the on-board satellite positioning system shall be better than 2
m (CEP95); the vertical positioning accuracy shall be better than 4 m (CEP95).
5.2.1.1.1.2 BeiDou single mode
Perform the test in accordance with 6.4.2.1.1.1. The horizontal positioning accuracy of
the on-board satellite positioning system shall be better than 2 m (CEP95); the vertical
positioning accuracy shall be better than 4 m (CEP95).
5.2.1.1.2 Urban canyon scenario
5.2.1.1.2.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Test according to 6.4.1.1.1.2 and 6.4.2.1.1.2. The horizontal positioning accuracy of the
on-board satellite positioning system shall be better than 10 m (CEP95); the vertical
positioning accuracy shall be better than 15 m (CEP95).
5.2.1.1.2.2 BeiDou single mode
Carry out test according to 6.4.2.1.1.2. The horizontal positioning accuracy of the on-
board satellite positioning system shall be better than 10 m (CEP95); the vertical
positioning accuracy shall be better than 15 m (CEP95).
5.2.1.2 Dynamic positioning accuracy
5.2.1.2.1 Open sky scenario
5.2.1.2.1.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Carry out test according to 6.4.1.1.2.1 and 6.4.2.1.2.1. The horizontal positioning
accuracy of the on-board satellite positioning system shall be better than 2 m (CEP95);
the vertical positioning accuracy shall be better than 4 m (CEP95).
5.2.1.2.1.2 BeiDou single mode
Carry out test according to 6.4.2.1.2.1. The horizontal positioning accuracy of the on-
board satellite positioning system shall be better than 2 m (CEP95); the vertical
positioning accuracy shall be better than 4 m (CEP95).
5.2.1.2.2 Urban canyon scenario
5.2.1.2.2.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Perform the test in accordance with 6.4.1.1.2.2 and 6.4.2.1.2.2. The horizontal
positioning accuracy of the on-board satellite positioning system shall be better than 10
m (CEP95); the vertical positioning accuracy shall be better than 15 m (CEP95).
5.2.1.2.2.2 BeiDou single mode
Perform the test in accordance with 6.4.2.1.2.2. The horizontal positioning accuracy of
the on-board satellite positioning system shall be better than 10 m (CEP95); the vertical
positioning accuracy shall be better than 15 m (CEP95).
5.2.1.3 Speed measurement accuracy
5.2.1.3.1 Open sky scenario
5.2.1.3.1.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Perform the test in accordance with 6.4.1.1.3.1 and 6.4.2.1.3.1. The speed measurement
accuracy of the on-board satellite positioning system shall be better than 0.5 m/s
(CEP95).
5.2.1.3.1.2 BeiDou single mode
Perform the test in accordance with 6.4.2.1.3.1. The speed measurement accuracy of
the on-board satellite positioning system shall be better than 0.5 m/s (CEP95).
5.2.1.3.2 Urban canyon scenario
5.2.1.3.2.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Perform the test in accordance with 6.4.1.1.3.2 and 6.4.2.1.3.2. The speed measurement
accuracy of the on-board satellite positioning system shall be better than 1 m/s (CEP95).
5.2.1.3.2.2 BeiDou single mode
Perform the test in accordance with 6.4.2.1.3.2. The speed measurement accuracy of
the on-board satellite positioning system shall be better than 1 m/s (CEP95).
5.2.2 Time to first fix
5.2.2.1 Cold start time to first fix
5.2.2.1.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Perform the test in accordance with 6.4.1.2.1 and 6.4.2.2.1. The cold start time to first
fix of the on-board satellite positioning system shall not exceed 90 s.
5.2.2.1.2 BeiDou single mode
Perform the test in accordance with 6.4.2.2.1. The cold start time to first fix of the on-
Test according to 6.4.2.4.2. The on-board satellite positioning system's reacquisition
sensitivity shall be better than -145 dBm.
5.2.4.3 Tracking sensitivity
5.2.4.3.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Test according to 6.4.1.4.3 and 6.4.2.4.3. The on-board satellite positioning system's
tracking sensitivity shall be better than -150 dBm.
5.2.4.3.2 BeiDou single mode
Tested in accordance with 6.4.2.4.3. The tracking sensitivity of the on-board satellite
positioning system shall be better than -150 dBm.
5.2.5 Timing performance
5.2.5.1 Open sky scenario
5.2.5.1.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
It is tested in accordance with 6.4.1.5.1 and 6.4.2.5.1. The UTC time resolution in the
on-board satellite positioning system's GGA shall be better than 0.01 s. If there is a
requirement for the pulse per second (1PPS) output of the on-board satellite positioning
system, its timing accuracy shall be better than 250 ns (CEP95).
5.2.5.1.2 BeiDou single mode
It is tested in accordance with 6.4.2.5.1. The UTC time resolution in the on-board
satellite positioning system's GGA shall be better than 0.01 s. If there is a requirement
for 1PPS output for the on-board satellite positioning system, its timing accuracy shall
be better than 250 ns (CEP95).
5.2.5.2 Urban canyon scenario
5.2.5.2.1 BeiDou multimode (BeiDou independent mode, BeiDou priority mode)
Carry out test according to 6.4.1.5.2 and 6.4.2.5.2. The UTC time resolution in the on-
board satellite positioning system's GGA shall be better than 0.01 s. If there is a
requirement for 1PPS output for the on-board satellite positioning system, its timing
accuracy shall be better than 250 ns (CEP95).
5.2.5.2.2 BeiDou single mode
Carry out test according to 6.4.2.5.2. The UTC time resolution in the on-board satellite
positioning system's GGA shall be better than 0.01 s. If there is a requirement for 1PPS
output for the on-board satellite positioning system, its timing accuracy shall be better
than 250 ns (CEP95).
Perform the test in accordance with 6.8.1.5.1. After the test, the position output by the
on-board satellite positioning system shall meet the requirements of multi-mode (for
BeiDou independent mode, BeiDou priority mode) or single mode (for BeiDou single
mode) in 5.2.1.2.2.
5.6.1.5.2 Reset performance for voltage drop
Perform the test in accordance with 6.8.1.5.2. After the test, the position output by the
on-board satellite positioning system shall meet the requirements of multi-mode (for
BeiDou independent mode, BeiDou priority mode) or single mode (for BeiDou single
mode) in 5.2.1.2.2.
5.6.1.5.3 Startup characteristics
Perform the test in accordance with 6.8.1.5.3. After the test, the position of the on-board
satellite positioning system output shall meet the multi-mode (for BeiDou independent
mode, BeiDou priority mode) or single-mode (for BeiDou single-mode) requirements
in 5.2.1.2.2.
It is not applicable to on-board satellite positioning systems installed only in vehicles
without low-voltage generators.
5.6.1.5.4 Load dumping
Perform the test in accordance with 6.8.1.5.4. After the test, the position of the on-board
satellite positioning system output shall meet the multi-mode (for BeiDou independent
mode, BeiDou priority mode) or single-mode (for BeiDou single-mode) requirements
in 5.2.1.2.2.
It is not applicable to on-board satellite positioning systems installed only in vehicles
without low-voltage generators.
5.6.1.6 Reverse voltage
Perform the test in accordance with 6.8.1.6. After the test, the position of the on-board
satellite positioning system output shall meet the multi-mode (for BeiDou independent
mode, BeiDou priority mode) or single-mode (for BeiDou single-mode) requirements
in 5.2.1.2.2.
5.6.1.7 Reference grounding and power supply offset
Perform the test in accordance with 6.8.1.7. During and after the test, the position of
the on-board satellite positioning system output shall meet the multi-mode (for BeiDou
independent mode, BeiDou priority mode) or single-mode (for BeiDou single-mode)
requirements in 5.2.1.2.2.
5.6.1.8 Open circuit
5.6.1.8.1 Single line open circuit
Perform the test in accordance with 6.8.1.8.1. After the test, the position of the on-board
satellite positioning system output shall meet the multi-mode (for BeiDou independent
mode, BeiDou priority mode) or single-mode (for BeiDou single-mode) requirements
in 5.2.1.2.2.
5.6.1.8.2 Multi-line open circuit
Perform the test in accordance with 6.8.1.8.2. After the test, the position output by the
on-board satellite positioning system shall meet the multi-mode (for BeiDou
independent mode, BeiDou priority mode) or single-mode (for BeiDou single-mode)
requirements in 5.2.1.2.2.
5.6.1.9 Short circuit protection
Perform the test in accordance with 6.8.1.9. After the test, the position of the on-board
satellite positioning system output shall meet the requirements of multi-mode (for
BeiDou independent mode, BeiDou priority mode) or single mode (for BeiDou single
mode) in 5.2.1.2.2.
5.6.1.10 Insulation resistance
Perform the test in accordance with 6.8.1.10. The insulation resistance of the on-board
satellite positioning sy...
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GB/T 45086.1-2024: Technical requirements and test methods for on-board positioning system - Part 1: Satellite positioning
GB/T 45086.1-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.10
CCS T 36
Technical requirements and test methods for on-board
positioning system - Part 1: Satellite positioning
ISSUED ON: NOVEMBER 28, 2024
IMPLEMENTED ON: JUNE 01, 2025
Issued by: State Administration for Market Regulation;
National Standardization Administration.
Table of Contents
Foreword ... 3
Introduction ... 5
1 Scope ... 6
2 Normative references ... 6
3 Terms and definitions ... 7
4 Abbreviations ... 9
5 Technical requirements ... 10
6 Test method ... 25
7 Inspection rules ... 47
Appendix A (Informative) General statement provisions ... 49
Appendix B (Normative) RF signal coordination parameter specifications ... 56
Appendix C (Normative) Cold start state setting method for on-board satellite
positioning system ... 57
Appendix D (Normative) On-board satellite positioning system test scenario ... 58
Appendix E (Normative) Data processing method for positioning accuracy ... 67
Appendix F (Normative) Data processing method for speed accuracy ... 69
Appendix G (Normative) Data processing method for timing accuracy ... 70
Appendix H (Informative) Road test of on-board satellite positioning system ... 71
Appendix I (Informative) Anechoic chamber simulation test of on-board satellite
positioning system ... 78
Appendix J (Informative) Durability test calculation model ... 81
Technical requirements and test methods for on-board
positioning system - Part 1: Satellite positioning
1 Scope
This document specifies the technical requirements for on-board satellite positioning
systems and describes the corresponding test methods.
This document applies to on-board satellite positioning systems.
2 Normative references
The contents of the following documents constitute essential clauses of this document
through normative references in the text. Among them, for dated references, only the
version corresponding to that date applies to this document; for undated references, the
latest version (including all amendments) applies to this document.
GB/T 2828.1 Sampling procedures for inspection by attributes -- Part 1: Sampling
schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 16422.2-2022 Plastics - Methods of exposure to laboratory light sources - Part
2: Xenon-arc lamps
GB/T 18655-2018 Vehicles, boats and internal combustion engines - Radio
disturbance characteristics - Limits and methods of measurement for the protection
of on-board receivers
GB/T 19951-2019 Road vehicles - Disturbances test methods for
electrical/electronic component from electrostatic discharge
GB/T 21437.2-2021 Road vehicles - Test method of electrical disturbances from
conduction and coupling - Part 2: Electrical transient conduction along supply lines
only
GB/T 21437.3-2021 Road vehicles - Test method of electrical disturbances from
conduction and coupling - Part 3: Electrical transient transmission by capacitive and
inductive coupling via lines other than supply lines
GB/T 28046.1-2011 Road vehicles - Environmental conditions and testing for
electrical and electronic equipment - Part 1: General
GB/T 28046.2-2019 Road vehicles - Environmental conditions and testing for
GNSS: Global Navigation Satellite System
GPS: Global Positioning System
HDOP: Horizontal Dilution of Precision
ID: Identity
PDOP: Positional Dilution of Precision
5 Technical requirements
5.1 Functional requirements
5.1.1 Output
Perform the test in accordance with 6.3.1. Under the test conditions of this document,
the output of the on-board satellite positioning system meets the following requirements.
a) It shall be able to output GGA, RMC, VTG, GSV, GSA messages; its format is
shown in Appendix A.
b) The validity mark and mode indication in the output information of GGA, RMC,
VTG, GSA shall be able to indicate the validity of the positioning and timing
information. When the on-board satellite positioning system cannot locate or
provide timing, the validity mark and mode indication in the output information
of GGA, RMC, VTG, GSA shall be invalid. The proportion of valid data shall not
be less than 99.99%.
c) The output update rate of GGA, RMC, VTG, GSA, GSV shall not be less than 1
Hz.
5.1.2 Mode
5.1.2.1 General requirements
The on-board satellite positioning system shall at least support BeiDou single mode.
When the on-board satellite positioning system works in BeiDou multi-mode, it shall
be tested according to 6.3.2.1 and shall have the function of switching to BeiDou single
mode.
5.1.2.2 BeiDou multi-mode
5.1.2.2.1 General
Perform the test in accordance with 6.3.2.2.1. The on-board satellite positioning system
shall support BeiDou multi-mode, i.e., BeiDou independent mode or BeiDou priority
5.2.1.1.1 Open sky scenario
5.2.1.1.1.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Perform the test in accordance with 6.4.1.1.1.1 and 6.4.2.1.1.1. The horizontal
positioning accuracy of the on-board satellite positioning system shall be better than 2
m (CEP95); the vertical positioning accuracy shall be better than 4 m (CEP95).
5.2.1.1.1.2 BeiDou single mode
Perform the test in accordance with 6.4.2.1.1.1. The horizontal positioning accuracy of
the on-board satellite positioning system shall be better than 2 m (CEP95); the vertical
positioning accuracy shall be better than 4 m (CEP95).
5.2.1.1.2 Urban canyon scenario
5.2.1.1.2.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Test according to 6.4.1.1.1.2 and 6.4.2.1.1.2. The horizontal positioning accuracy of the
on-board satellite positioning system shall be better than 10 m (CEP95); the vertical
positioning accuracy shall be better than 15 m (CEP95).
5.2.1.1.2.2 BeiDou single mode
Carry out test according to 6.4.2.1.1.2. The horizontal positioning accuracy of the on-
board satellite positioning system shall be better than 10 m (CEP95); the vertical
positioning accuracy shall be better than 15 m (CEP95).
5.2.1.2 Dynamic positioning accuracy
5.2.1.2.1 Open sky scenario
5.2.1.2.1.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Carry out test according to 6.4.1.1.2.1 and 6.4.2.1.2.1. The horizontal positioning
accuracy of the on-board satellite positioning system shall be better than 2 m (CEP95);
the vertical positioning accuracy shall be better than 4 m (CEP95).
5.2.1.2.1.2 BeiDou single mode
Carry out test according to 6.4.2.1.2.1. The horizontal positioning accuracy of the on-
board satellite positioning system shall be better than 2 m (CEP95); the vertical
positioning accuracy shall be better than 4 m (CEP95).
5.2.1.2.2 Urban canyon scenario
5.2.1.2.2.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Perform the test in accordance with 6.4.1.1.2.2 and 6.4.2.1.2.2. The horizontal
positioning accuracy of the on-board satellite positioning system shall be better than 10
m (CEP95); the vertical positioning accuracy shall be better than 15 m (CEP95).
5.2.1.2.2.2 BeiDou single mode
Perform the test in accordance with 6.4.2.1.2.2. The horizontal positioning accuracy of
the on-board satellite positioning system shall be better than 10 m (CEP95); the vertical
positioning accuracy shall be better than 15 m (CEP95).
5.2.1.3 Speed measurement accuracy
5.2.1.3.1 Open sky scenario
5.2.1.3.1.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Perform the test in accordance with 6.4.1.1.3.1 and 6.4.2.1.3.1. The speed measurement
accuracy of the on-board satellite positioning system shall be better than 0.5 m/s
(CEP95).
5.2.1.3.1.2 BeiDou single mode
Perform the test in accordance with 6.4.2.1.3.1. The speed measurement accuracy of
the on-board satellite positioning system shall be better than 0.5 m/s (CEP95).
5.2.1.3.2 Urban canyon scenario
5.2.1.3.2.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Perform the test in accordance with 6.4.1.1.3.2 and 6.4.2.1.3.2. The speed measurement
accuracy of the on-board satellite positioning system shall be better than 1 m/s (CEP95).
5.2.1.3.2.2 BeiDou single mode
Perform the test in accordance with 6.4.2.1.3.2. The speed measurement accuracy of
the on-board satellite positioning system shall be better than 1 m/s (CEP95).
5.2.2 Time to first fix
5.2.2.1 Cold start time to first fix
5.2.2.1.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Perform the test in accordance with 6.4.1.2.1 and 6.4.2.2.1. The cold start time to first
fix of the on-board satellite positioning system shall not exceed 90 s.
5.2.2.1.2 BeiDou single mode
Perform the test in accordance with 6.4.2.2.1. The cold start time to first fix of the on-
Test according to 6.4.2.4.2. The on-board satellite positioning system's reacquisition
sensitivity shall be better than -145 dBm.
5.2.4.3 Tracking sensitivity
5.2.4.3.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
Test according to 6.4.1.4.3 and 6.4.2.4.3. The on-board satellite positioning system's
tracking sensitivity shall be better than -150 dBm.
5.2.4.3.2 BeiDou single mode
Tested in accordance with 6.4.2.4.3. The tracking sensitivity of the on-board satellite
positioning system shall be better than -150 dBm.
5.2.5 Timing performance
5.2.5.1 Open sky scenario
5.2.5.1.1 BeiDou multi-mode (BeiDou independent mode, BeiDou priority mode)
It is tested in accordance with 6.4.1.5.1 and 6.4.2.5.1. The UTC time resolution in the
on-board satellite positioning system's GGA shall be better than 0.01 s. If there is a
requirement for the pulse per second (1PPS) output of the on-board satellite positioning
system, its timing accuracy shall be better than 250 ns (CEP95).
5.2.5.1.2 BeiDou single mode
It is tested in accordance with 6.4.2.5.1. The UTC time resolution in the on-board
satellite positioning system's GGA shall be better than 0.01 s. If there is a requirement
for 1PPS output for the on-board satellite positioning system, its timing accuracy shall
be better than 250 ns (CEP95).
5.2.5.2 Urban canyon scenario
5.2.5.2.1 BeiDou multimode (BeiDou independent mode, BeiDou priority mode)
Carry out test according to 6.4.1.5.2 and 6.4.2.5.2. The UTC time resolution in the on-
board satellite positioning system's GGA shall be better than 0.01 s. If there is a
requirement for 1PPS output for the on-board satellite positioning system, its timing
accuracy shall be better than 250 ns (CEP95).
5.2.5.2.2 BeiDou single mode
Carry out test according to 6.4.2.5.2. The UTC time resolution in the on-board satellite
positioning system's GGA shall be better than 0.01 s. If there is a requirement for 1PPS
output for the on-board satellite positioning system, its timing accuracy shall be better
than 250 ns (CEP95).
Perform the test in accordance with 6.8.1.5.1. After the test, the position output by the
on-board satellite positioning system shall meet the requirements of multi-mode (for
BeiDou independent mode, BeiDou priority mode) or single mode (for BeiDou single
mode) in 5.2.1.2.2.
5.6.1.5.2 Reset performance for voltage drop
Perform the test in accordance with 6.8.1.5.2. After the test, the position output by the
on-board satellite positioning system shall meet the requirements of multi-mode (for
BeiDou independent mode, BeiDou priority mode) or single mode (for BeiDou single
mode) in 5.2.1.2.2.
5.6.1.5.3 Startup characteristics
Perform the test in accordance with 6.8.1.5.3. After the test, the position of the on-board
satellite positioning system output shall meet the multi-mode (for BeiDou independent
mode, BeiDou priority mode) or single-mode (for BeiDou single-mode) requirements
in 5.2.1.2.2.
It is not applicable to on-board satellite positioning systems installed only in vehicles
without low-voltage generators.
5.6.1.5.4 Load dumping
Perform the test in accordance with 6.8.1.5.4. After the test, the position of the on-board
satellite positioning system output shall meet the multi-mode (for BeiDou independent
mode, BeiDou priority mode) or single-mode (for BeiDou single-mode) requirements
in 5.2.1.2.2.
It is not applicable to on-board satellite positioning systems installed only in vehicles
without low-voltage generators.
5.6.1.6 Reverse voltage
Perform the test in accordance with 6.8.1.6. After the test, the position of the on-board
satellite positioning system output shall meet the multi-mode (for BeiDou independent
mode, BeiDou priority mode) or single-mode (for BeiDou single-mode) requirements
in 5.2.1.2.2.
5.6.1.7 Reference grounding and power supply offset
Perform the test in accordance with 6.8.1.7. During and after the test, the position of
the on-board satellite positioning system output shall meet the multi-mode (for BeiDou
independent mode, BeiDou priority mode) or single-mode (for BeiDou single-mode)
requirements in 5.2.1.2.2.
5.6.1.8 Open circuit
5.6.1.8.1 Single line open circuit
Perform the test in accordance with 6.8.1.8.1. After the test, the position of the on-board
satellite positioning system output shall meet the multi-mode (for BeiDou independent
mode, BeiDou priority mode) or single-mode (for BeiDou single-mode) requirements
in 5.2.1.2.2.
5.6.1.8.2 Multi-line open circuit
Perform the test in accordance with 6.8.1.8.2. After the test, the position output by the
on-board satellite positioning system shall meet the multi-mode (for BeiDou
independent mode, BeiDou priority mode) or single-mode (for BeiDou single-mode)
requirements in 5.2.1.2.2.
5.6.1.9 Short circuit protection
Perform the test in accordance with 6.8.1.9. After the test, the position of the on-board
satellite positioning system output shall meet the requirements of multi-mode (for
BeiDou independent mode, BeiDou priority mode) or single mode (for BeiDou single
mode) in 5.2.1.2.2.
5.6.1.10 Insulation resistance
Perform the test in accordance with 6.8.1.10. The insulation resistance of the on-board
satellite positioning sy...
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