基于TECR的GPS三频数据周跳探测方法研究

基于三频伪距相位和无几何相位组合周跳探测与修复的基本原理，分析电离层活跃期电子含量变化率的特点，提出削弱电离层影响的三频组合周跳探测与修复方案。实验表明，本文方法能够有效探测和修复电离层活跃观测条件下观测数据中的所有周跳，且周跳探测阈值较小，不存在敏感周跳。

Research on Cycle Slip Detection Methods for Triple-Frequency GPS Data Based on TECR

Based on fundamentals of cycle slip detection and correction through triple-frequency code-phase and geometry-free phase combination, we analyze the rate of electron content (TECR) in ionospheric activity phase. We then present a new triple-frequency method of cycle slip detection and correction for weakening the ionospheric error. The algorithm is validated by triple-frequency observed data in ionospheric activity phase, and the experimental results show that the method can detect and validlyrepair all the cycle slip in observed data in ionospheric activity phases. Moreover, the threshold of cycle slip detection on method is small and the method has no sensitive cycle slip.