测绘通报 ›› 2020, Vol. 0 ›› Issue (3): 83-86,95.doi: 10.13474/j.cnki.11-2246.2020.0083

• 技术交流 • 上一篇    下一篇

GPS与BDS2、BDS3融合数据短基线解算精度分析

金俭俭1, 高成发1, 张瑞成1, 汪波2   

  1. 1. 东南大学交通学院, 江苏 南京 211189;
    2. 上海达华测绘有限公司, 上海 200136
  • 收稿日期:2019-05-21 修回日期:2019-08-28 出版日期:2020-03-25 发布日期:2020-04-09
  • 通讯作者: 高成发。E-mail:gaochfa@seu.edu.cn E-mail:gaochfa@seu.edu.cn
  • 作者简介:金俭俭(1993-),男,硕士生,主要研究方向为多频多系统GNSS组合定位。E-mail:jinjj_seu@foxmail.com

Accuracy analysis of short baseline calculation for GPS and BDS2, BDS3 fusion data

JIN Jianjian1, GAO Chengfa1, ZHANG Ruicheng1, WANG Bo2   

  1. 1. School of Transportation, Southeast University, Nanjing 211189, China;
    2. Shanghai Dahua Surveying and Mapping Co., Ltd., Shanghai 200136, China
  • Received:2019-05-21 Revised:2019-08-28 Online:2020-03-25 Published:2020-04-09

摘要: 北斗卫星导航系统于2018年12月27日正式向全球用户提供导航定位服务。本文主要利用自编软件进行了不同系统卫星组合下的短基线解算试验。结果表明,在小范围区域内(5 km)的短基线,BDS2+BDS3组合定位平面定位精度达3 mm,高程方向定位精度达6 mm;与单GPS定位结果相比,N、E、U各方向分别有28.9%、6.5%、12.2%的提升幅度;与单BDS2定位结果相比,N、E、U各方向分别有34.0%、25.1%、39.6%的提升幅度。GPS、BDS2、BDS3融合数据处理结果N、E、U各方向外符合偏差均在5 mm内。

关键词: GPS, BDS, 短基线, 双差, 整周模糊度

Abstract: On December 27, 2018, BeiDou satellite navigation system officially provided navigation and positioning services to users around the world. The short-baseline solution experiments under different system satellite combinations are carried outusing the self-programming software in this paper. The results show that the short-baseline (5 km) in the small-area region has a positioning accuracy of 3 mm for the BDS2+BDS3 combined positioning plane and 6 mm for the elevation direction. Compared with the single GPS positioning result, the N, E, and U directions are increased by 28.9%, 6.5% and 12.2%, respectively. Compared with the single BDS2 positioning result, the N, E, and U directions are respectively increased 34.0%, 25.1% and 39.6%. GPS, BDS 2, BDS 3 fusion data processing results N, E, U all outward deviations within 5 mm.

Key words: GPS, BDS, short baseline, double difference, integer ambiguity

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