摘要
针对双频定位高精度数据处理过程中观测值含有周跳的问题,提出一种联合改进后的双频载波相位变化率与电离层残差的组合探测方法:首先在原始载波相位变化率法的基础上计算双频观测值的探测量,用以探测并修复大部分周跳;然后采用电离层残差作为检验量继续对双频观测值进行探测,实现对探测盲点下漏检周跳的修复。实验结果表明,该算法可以较全面、准确地探测出双频数据中存在的周跳,且探测过程较为迅速。
Aiming at the problem that the observations contain cycle slips in the process of dual-frequency positioning highprecision data processing,the paper proposed a combined detection method of improved dual-frequency carrier phase rate and ionosphere residual error:the detection variables of dual-frequency observations based on the original carrier phase rate method were calculated to detect and repair most cycle slips;and the ionosphere residual error was used as the test variable to continue the detection of the dual-frequency observations,in order to realize the repair of the missed cycle slips under the detection blind spots.Experimental result showed that the proposed method could detect cycle slips in dual-frequency data relatively comprehensively and accurately,and the detection process would be relatively rapid.
作者
李明
丁志鹏
邱立杰
贺凯飞
宗尧
LI Ming;DING Zhipeng;QU Lijie;HE Kaifei;ZONG Yao(College of Oceanography and Space Informatics,China University of Petroleum(East China),Qingdao,Shandong 266580,China)
出处
《导航定位学报》
CSCD
2023年第1期89-94,共6页
Journal of Navigation and Positioning
基金
国家自然科学基金项目(41604021)
山东省自然科学基金项目(ZR202102250311)。
关键词
周跳探测
双频
载波相位变化率
电离层残差
组合探测
cycle slip detection
dual frequency
carrier phase rate
ionosphere residual error
combined detection
