GPS非差数据周跳探测方法研究

RESEARCH ON CYCLE SLIP DETECTION METHODS FOR UN-DIFFERENCED GPS DATA

分析讨论电离层扰动时期TurboEdit和TECR两种方法探测周跳的效果。通过选择不同采样间隔、电离层活动水平的观测数据,进行周跳探测实验。结果表明,对于GPS非差数据,TurboEdit组合无法探测6周以内的宽巷周跳;而TECR可以探测所有的周跳组合,但要求数据的采样间隔≤1 s。

We present an analysis of two cycle slip detection methods： TurboEdit and TECR. The effects of cycle slip detection with these two methods during ionospheric disturbance are studied. Cycle slip detection experiments were carried out by selecting observed data with different sampling intervals and different levels of ionospheric activity. The results show that, for the un-differenced GPS data, the TurboEdit combination cannot detect wide lane cycle slips within 6 cycles,while the TECR method can detect any combination of cycle slips, but the sampling interval must be less than or equal to 1 second.