Siyuan Tan

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This paper focuses on performance enhancement for stand-alone Global Navigation Satellite System (GNSS) positioning. To speed up the realization of satellite position, a novel technique is proposed for GNSS satellite orbit fast fitting, which contributes to the acquisition of GNSS satellite signal deeply. The ephemeris orbit model is imminent by different(More)
The core issue of fast positioning during the hot start process is to obtain the position result before frame synchronization. Due to the lack of incomplete time information needed to compute the pseudo range before frame synchronization, the pseudo range must be calculated by estimating the integer part of bit-scale time plus the precise fraction part(More)
In single constellation, such as GPS, BDS, Galileo or GLONASS, the tracked signals are susceptible under the obstruction with many high buildings or city canyon around. In this case, faulty satellite is just able to be detected by conventional Receiver Autonomous Integrity Monitoring (RAIM), while we cannot identify it with only one redundancy satellite. In(More)
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