测绘通报 ›› 2021, Vol. 0 ›› Issue (3): 7-11,17.doi: 10.13474/j.cnki.11-2246.2021.0069

• 北斗三号定位与导航 • 上一篇    下一篇

BDS-3双频组合精密单点定位精度分析

刘生锋1, 杨文龙1, 谷涛2   

  1. 1. 中国兵器工业试验测试研究院, 陕西 华阴 714200;
    2. 北方电子研究院有限公司, 陕西 西安 710000
  • 收稿日期:2020-04-13 出版日期:2021-03-25 发布日期:2021-04-02
  • 作者简介:刘生锋(1972—),男,研究员,主要从事大地测量方面的研究。E-mail:1418474282@qq.com
  • 基金资助:
    十一五"国防基础科研项目(B0920060335)

Accuracy analysis of BDS-3 dual frequency combination precision point positioning

LIU Shengfeng1, YANG Wenlong1, GU Tao2   

  1. 1. China Ordnance Industry Test and Research Institute, Huayin 714200, China;
    2. Northern Electronics Research Institute Co., Ltd., Xi'an 710000, China
  • Received:2020-04-13 Online:2021-03-25 Published:2021-04-02

摘要: 针对BDS-2、BDS-3、BDS-2/BDS-3不同双频组合精密单点定位的性能差异,本文分析了BDS-3中7种不同双频组合的PPP精度,并与BDS-2、BDS-2/BDS-3相同频率双频组合PPP精度进行了对比。结果表明,BDS-2和BDS-3相同频率双频组合PPP精度与首次收敛时间相当,其中B2I/B3I组合的PPP精度与首次收敛时间最差,BDS-2/BDS-3组合的定位精度和首次收敛时间相比单一情况有了较大改善。在BDS-3双频组合的PPP方面,B2b/B3I组合的PPP精度和首次收敛时间是BDS-3中7种双频组合PPP精度中最差的,其他6种双频组合PPP定位性能相当。

关键词: BDS-3, 精密单点定位, 双频, 精度, 收敛时间

Abstract: In view of the difference in the precise point positioning performance of different dual-band combinations of BDS-2, BDS-3, and BDS-2/BDS-3, this paper analyzes the PPP precision of seven different dual-band combinations in BDS-3 and compares it with BDS-2, BDS-2/BDS-3 same frequency dual frequency combination PPP precision comparison. The results show that the precision of BDS-2 and BDS-3 at the same frequency dual-frequency combination PPP is equivalent to the first convergence time. Among them, the precision of B2I/B3I combination PPP is the worst, and the precision of BDS-2/BDS-3 positioning precision and the first convergence time compared with the single situation, it has been greatly improved. In terms of BDS-3 dual-band combined PPP, the precision and first convergence time of the B2b/B3I combined PPP are the worst of the BDS-3 seven dual-band combined PPP, and the positioning performance of the other six dual-band combined PPPs is comparable.

Key words: BDS-3, precise point positioning, dual frequency, precision, convergence time

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