GB/T 42979-2023 in English
VALIDPerformance requirements and test methods for position report/short message terminal of Global Navigation Satellite System（GNSS）
- Issued on:2023-09-07
- Implemented on:2024-04-01
- File Format:PDF
- Delivery:Via email within 5 business days
$582.00
| Standard No: | GB/T 42979-2023 |
| Document status: | VALID |
| Title in English: | Performance requirements and test methods for position report/short message terminal of Global Navigation Satellite System（GNSS） |
| Title in Chinese: | 全球卫星导航系统（GNSS）位置报告/短报文型终端性能要求及测试方法 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2023-09-07 |
| Implemented on: | 2024-04-01 |
| ICS Classification: | 33.200-Telecontrol. Telemetering |
| Chinese Classification: | M50-Radar, navigation, remote control, remote measuring and antenna synthesis |
| Professional Classification: | GB-National Standard |
| Related Topics: | Navigation System
report location Determination method report Security Test Report Shortwave Test Report report global gb/t 42979-2023 Global Satellite Navigation System (gnss) position reporting/short message terminal performance requirements and test methods gb/t 42979-2023 gb/t 42979 |
《GB/T 42979-2023全球卫星导航系统（GNSS）位置报告/短报文型终端性能要求及测试方法》由339-1（工业和信息化部（电子））归口，主管部门为工业和信息化部（电子）。
Introduction
Analysis of the core content of the standard
This standard systematically specifies the performance system of GNSS terminals supporting Beidou RDSS services for the first time, and innovatively incorporates position reporting and short message communication functions into a unified technical framework. Compared with traditional GPS terminal standards, it adds a new command user terminal classification and 12 security control function requirements.
Terminal classification system
| Classification dimensions | Type | Typical characteristics |
|---|---|---|
| Functional classification | Ordinary user terminal | Basic positioning/communication functions |
| Command user terminal | Supports command functions such as broadcasting and receiving | |
| Usage conditions | Class I (fixed) | Antenna elevation angle 40°-90° |
| Class II (portable) | Requires coarse alignment with satellite | |
| Category III (vehicle-mounted/aircraft-mounted) | Omnidirectional automatic tracking |
Key technical indicators
Positioning performance requirements
- Horizontal positioning accuracy: ≤10m (PDOP≤6,95% confidence level)
- First positioning time: cold start≤120s, hot start≤5s
- RNSS receiving sensitivity: B1I≤-163dBW (cold start)
Communication performance requirements
- Short message success rate: ≥95%
- Combined reception success rate: command terminal ≥95%
- Transmit EIRP: 3-16dBW
Innovation in test methods
The first dual-mode test system in the standard:
- Actual satellite test: actual measurement and verification in an open field
- Microwave darkroom simulation: a controllable test environment is built through a satellite navigation signal simulator
The key test scenarios include static (zero speed), quasi-static (≤30m/s) and dynamic (≤300m/s) motion states.
Implementation suggestions
Product development suggestions
- Multi-system compatible design: it is recommended to support BDS/GPS/GLONASS signals at the same time
- Anti-interference optimization: it is necessary to meet the positioning accuracy requirements under the conditions of self-interference of transmission and reception
Testing and certification suggestions
- Microwave darkroom simulation test is preferred as the arbitration solution
- Note the differences in antenna elevation test for Class I/II/III terminals
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