作者: X. Yu , X. Zhao , S. Wang , C. Liu , J. Ou
DOI: 10.1080/00396265.2016.1151576
关键词: Global Positioning System 、 Satellite navigation 、 GLONASS 、 GNSS applications 、 BeiDou Navigation Satellite System 、 Geodesy 、 Geography 、 Kalman filter 、 Precise Point Positioning 、 Satellite system
摘要: Multi-Global Navigation Satellite System (GNSS) integration can effectively improve the satellite geometry strength, and certain effect on precise point positioning (PPP) accuracy convergence speed. Taking system difference into account, this paper deduces unified GNSS observation model, which is extended to multi-GNSS PPP functional model. Meanwhile, stochastic model used in Kalman filter parameter estimation presented paper. Furthermore, evaluate performance of Asia-Pacific region, observed data from International Service reference stations are analysed using self-developed software. In detail, results Global Positioning (GPS)-, GLObal NAvigation (GLONASS)- BeiDou (BDS)-only PPP, double combined GPS/GLONASS/BDS under different duration cut-off elevation angles analysed. Results demonstrate: (1) compared with single s...