基于GF组合自适应阈值模型的BDS周跳探测方法

针对北斗3种不同类型卫星轨道在静态及动态环境下相位历元差与卫星高度角和采样率之间的关系，构建适用于不同轨道卫星GF组合自适应阈值模型的BDS周跳探测方法。结果表明，本文方法可适用于北斗各类轨道卫星高度角较低及电离层活跃等不利观测环境下的周跳探测，尽可能地避免各采样率情况下的错判及漏判现象，显著提高采样率较低及多路径误差较大时的探测准确率。

BDS Cycle Slip Detection Method Based on Adaptive Threshold Model GF Combination

Using GF combination of adaptive threshold model in static and dynamic environments, we develop the method of BDS peri-hop detection for different orbiting satellites. The results show that the method can be applied to circumferential hop detection under unfavorable observation environments, such as low altitude angle and active ionospheric period of the satellites in each orbit of BeiDou, avoiding misjudgment and omission in each sampling rate as much as possible, significantly improving detection accuracy when the sampling rate is low and the multi-path error is large.