Influence of SatelliteS Elevation on the Detection of Triple-Frequency Cycle Slip for GPS
The detection and repair of cycle slip are very important for high-precision positioning.Detection cycle slip for triple-frequency detect method should be as small as possible and elevation of satellite become a factor that cannot be ignored.First,three optimal linear independent combinations for GPS are selected to detect cycle slip.Then the equation of success rate of cycle slip detection and elevation is derived,40 degree is set as threshold for cycle slip detection.When elevation is higher 40 degree,overall detection success rate is above 96.91%.Finally,data of GPS is tested to observe the actual detection of the cycle slip.The result shows that WL and NL combinations are affected by elevation and have obvious changes.Due to code observation in EWL combination,elevation has a smaller impact on EWL combination.
GPS triple-frequency cycle slip elevation code-phase combination
Xiangxiang Fan Xurong Dong Weiyi Shuai
Space Engineering University,Beijing,China
国际会议
重庆
英文
276-281
2019-05-30(万方平台首次上网日期,不代表论文的发表时间)