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The Chinese BeiDou Navigation Satellite System (BDS) contains five geostationary earth orbit (GEO) satellites, which maintain almost stationary with respect to the earth. The accuracy of GEO orbit is very poor, which has negatively influenced multi-GNSS precise point positioning (PPP) integer ambiguity resolution (IAR). To overcome this problem, we estimate GEO orbit error corrections together with...
The main challenge of ambiguity resolution in precise point positioning (PPP) is that it requires 30 min or more to succeed in the first fixing of ambiguities. With the full operation of the BeiDou (BDS) satellite system in East Asia, it is worthwhile to investigate the performance of GPS + BDS PPP ambiguity resolution, especially the improvements of the initial fixing time and ambiguity-fixing rate...
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