一种GPS周跳探测与修复的组合算法  

A Combined Algorithm for Cycle Slips Detection and Correction

作　　者：张书毕[1,2] 朱绍攀[1,2] 张秋昭[1,2] 

机构地区：[1]中国矿业大学国土环境与灾害监测国家测绘局重点实验室,江苏徐州221116 [2]中国矿业大学环境与测绘学院,江苏徐州221116

出　　处：《测绘科学技术学报》2012年第1期1-4,8,共5页Journal of Geomatics Science and Technology

基　　金：江苏省普通高校研究生科研创新计划立项资助项目(CXLX11-0324);江苏测绘科研项目计划资助项目(JSCHKY201112)

摘　　要：周跳是影响GPS定位精度的一个重要因素,对周跳的探测与修复一直是个重要问题。首先研究了电离层残差法、宽巷相位减窄巷伪距法两种经典方法的优缺点,提出了一种探测周跳的组合算法。根据周跳的整数特性,利用搜索整数解的思想确定周跳的大小进而修复周跳。经实测数据检验,该算法有效可行,有很强的实用性。Cycle slip is an important affecting factor of the GPS positioning accuracy.Cycle slip detection and correction is always an important issue.Firstly,the classic cycle slip detection algorithms of the ionized layer remnant method of difference and the width lane phase narrow reduce false method were researched.Based on advantages and disadvantages of the two methods,the cycle slip detection and correction of the combination algorithm was designed.According to cycle slips＇ integer characteristics and making use of searching for integer solution,the cycle slips were determined and corrected.Test results showed that the new method was effective and practical.

关 键 词：周跳探测 电离层残差法 宽巷相位减窄巷伪距法 组合算法 最佳周跳搜索 

分 类 号：P228.41[天文地球—大地测量学与测量工程]