基于三差观测量的实时动态GPS周跳修复方法研究  

An Cycle-Slip Correction Method for Real-Time Kinematic GPS Data Based on Triple Differences Observation

作　　者：王贵文[1] 王泽民[1] 殷海涛[2] 

机构地区：[1]武汉大学测绘学院,武汉市珞喻路129号430079 [2]西南交通大学测量系,成都市二环路北一段111号610031

出　　处：《武汉大学学报（信息科学版）》2007年第8期711-714,共4页Geomatics and Information Science of Wuhan University

基　　金：国家自然科学基金资助项目(49904001);国土资源部资助项目(国地防灾[2003]031709))

摘　　要：提出了一种适用于实时动态周跳修复的方法。该方法利用多普勒观测值(或伪距),包括产生候选值、筛选候选值、确定候选值3个步骤。与已有的方法相比,该方法无需对观测值进行预报,适用于连续周跳的探测。理论推导和试验结果表明,在发生连续周跳时该方法能够探测出所有的周跳。In order to obtain consistent high-precision positioning results with GPS carrierphase measurements, cycle-slips must be correctly detected and removed or handled at the data processing stage. This paper proposes a new cycle-slip correction method. The approach includes generating and filtering cycle-slip candidates. It can be derived directly from the observation triple-difference time series under simple assumption. Compared with conventional methods, this method needs not prediction values of the measurements. The method is suitable for continuously cycle-slip. Theory and test show the method can correct all cycle-slip.

关 键 词：GPS 周跳 候选值 

分 类 号：P228.41[天文地球—大地测量学与测量工程]