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

doi:10.13474/j.cnki.11-2246.2020.0083

Abstract

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

CLC Number:

P228

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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