| GPS与BDS2、BDS3融合数据短基线解算精度分析 |
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| 引用本文： | 金俭俭,高成发,张瑞成,汪波.GPS与BDS2、BDS3融合数据短基线解算精度分析[J].测绘通报,2020,0(3):83-86,95. |
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| 作者姓名： | 金俭俭 高成发 张瑞成 汪波 |
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| 作者单位： | 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 |
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| 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。
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| 关 键 词： | GPS BDS 短基线 双差 整周模糊度 |
| 收稿时间： | 2019-05-21 |
| 修稿时间： | 2019-08-28 |
Accuracy analysis of short baseline calculation for GPS and BDS2,BDS3 fusion data |
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| JIN Jianjian,GAO Chengfa,ZHANG Ruicheng,WANG Bo.Accuracy analysis of short baseline calculation for GPS and BDS2,BDS3 fusion data[J].Bulletin of Surveying and Mapping,2020,0(3):83-86,95. |
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| Authors: | JIN Jianjian GAO Chengfa ZHANG Ruicheng WANG Bo |
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| Institution: | 1. School of Transportation, Southeast University, Nanjing 211189, China;2. Shanghai Dahua Surveying and Mapping Co., Ltd., Shanghai 200136, China |
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| Abstract: | On December 27,2018,Bei Dou 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 selfprogramming 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. |
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| Keywords: | GPS BDS short baseline double difference integer ambiguity |
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