GB/T 39614-2020 in English
VALIDQuality assessment specifications for reference stations using global navigation satellite system
- Issued on:2020-12-14
- Implemented on:2020-12-14
- File Format:PDF
- Delivery:Via email within 5 business days
$301.00
《GB/T 39614-2020卫星导航定位基准站网质量评价规范》由TC230（全国地理信息标准化技术委员会）归口，主管部门为自然资源部(测绘地理)。
Introduction
Analysis of the core content of the standard
| First-level indicators | Weight | Key second-level indicators |
|---|---|---|
| Site quality | 0.50 | Site hardware equipment (0.20), data availability (core) |
| Data center facilities | 0.20 | Computers and networks (0.35), computer room reliability |
| System services | 0.30 | Service performance (0.50), Beidou compatibility (mandatory) |
Technical points for quality evaluation
Defect deduction mechanism: Four-level defect classification (I-IV) is adopted, with corresponding deductions of 15/10/5/1 points. When the score of important secondary indicators is <60 points, it is directly judged as Class D.
GNSS receivers and other hardware equipment must provide calibration certificates, the data availability threshold is set at 85%, and the multipath impact limit is 0.5m.
Implementation suggestions
- Formal evaluation can only be carried out after the trial operation period is ≥6 months
- Focus on Beidou antenna compatibility and data center dual-link redundancy
- The evaluation is valid for 2 years, and a regular re-evaluation mechanism needs to be established
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