【摘 要】
：
Pseudolites system provide positioning service based on a ranging process similar to Global Navigation Satellite System (GNSS) that need all transmitters ha
【机 构】
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State Key Laboratory of Satellite Navigation System and Equipment Technology, No.589 West Zhongshan
论文部分内容阅读
Pseudolites system provide positioning service based on a ranging process similar to Global Navigation Satellite System (GNSS) that need all transmitters have consistent reference time and frequency.In airborne pseudolites navigation system applications,all UAVs are move continually and it is impossible to achieve real-time precision flight trajectories,which have more challenge for wireless time synchronization.This study provides a method based on direct two-way time and frequency trans-fer (TWTFT) link that calculate the clock difference by ranging differential delay and error compensating without UAVs accurate position.In addition,analysis of the synchronization performance in high dynamic and jamming situation will be showed by showing the effect of pseudolites clock drift,Sagnac and unsymmetrical interference.A software simulation and hardware test results are provided.
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