摘要
BDS非GEO卫星的MW组合存在与高度角强相关的系统性偏差,针对其引起的TurboEdit算法探测周跳不可靠问题,该文提出一种高度角指数滤波模型。改进后的周跳检验量消除了MW组合的系统性偏差,具有更好的探测性能。采用BDS实测数据对该方法进行验证,结果表明:该方法显著降低了MW组合周跳探测时的漏检和误检,结合GF组合的历元间二次差算法,可以准确探测所有人为加入的周跳。
In order to solve the problem of unreliable cycle slip detection by TurboEdit algorithm which is caused by the strong correlation of systematic deviation between Melbourne-Wübbena(MW) combination of BeiDou navigation satellite system(BDS) non-GEO satellite and altitude angle, an altitude angle exponential filtering model was proposed. The improved cycle slip detection method eliminated the systematic deviation of MW combination and had better detection performance. The method was validated by BDS observations, and the results showed that the model, which greatly reduced the missed and false detection of MW combined cycle slip detection, combined with(second order time difference phase ionosphrenic residual, STPIR) algorithm could accurately detect all artificial cycle slip combinations.
作者
张晨晰
党亚民
薛树强
张龙平
ZHANG Chenxi;DANG Yamin;XUE Shuqiang;ZHANG Longping(Shandong University of Science and Technology,Taian,Shandong 271000,China;Chinese Academy of Surveying and Mapping,Beijing 100036,China;Beijing Piesat Information Technology Company,Beijing 100195,China)
出处
《测绘科学》
CSCD
北大核心
2021年第6期47-52,64,共7页
Science of Surveying and Mapping
基金
泰安市科技发展计划(引导计划)项目(2019GX006)。
关键词
周跳探测
BDS
MW组合
漏检和误检
高度角指数滤波模型
cycle slip detection
BDS
MW combination
missed and false detection
altitude angle exponential filtering model
