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基于三差观测量的实时动态GPS周跳修复方法研究
引用本文:王贵文,王泽民,殷海涛.基于三差观测量的实时动态GPS周跳修复方法研究[J].武汉大学学报(信息科学版),2007,32(8):711-714.
作者姓名:王贵文  王泽民  殷海涛
作者单位: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
基金项目:国家自然科学基金;国土资源部科研项目
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。

关 键 词:周跳  候选值
文章编号:1671-8860(2007)08-0711-04
修稿时间:2007-06-10

An Cycle-Slip Correction Method for Real-Time Kinematic GPS Data Based on Triple Differences Observation
WANG Guiwen,WANG Zemin,YIN Haitao.An Cycle-Slip Correction Method for Real-Time Kinematic GPS Data Based on Triple Differences Observation[J].Geomatics and Information Science of Wuhan University,2007,32(8):711-714.
Authors:WANG Guiwen  WANG Zemin  YIN Haitao
Institution:1.School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan 430079, China;2. Dept. of Surveying Engineering, Southwest Jiaotong University, Chendu 610031, China
Abstract:In order to obtain consistent high-precision positioning results with GPS carrier-phase 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.
Keywords:GPS
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