精密单点定位中双频GPS数据的周跳探测与修复  

Detection and Reparation for Cycle Slips with Dual Frequency GPS Data in Precise Point Positioning

作　　者：李凯锋[1] 韩建国[1] 欧阳永忠[1] 刘传勇[1] 张志浩[2] 

机构地区：[1]海军海洋测绘研究所,天津300061 [2]海军出版社,天津300450

出　　处：《海洋测绘》2008年第3期27-30,共4页Hydrographic Surveying and Charting

基　　金：国家863计划项目(2006AA06A202)

摘　　要：周跳的探测与修复,特别是小周跳的探测是实现GPS高精度实时定位的关键技术基础之一。分析了非差相位观测值线性组合模式,比较了几种周跳修复的方法,得出宽巷和电离层组合方法更适用于精密单点定位中双频GPS数据的周跳探测和修复。通过实例分析,证明该方法能够有效地探测并修复周跳。Detection and reparation for cycle slips, especially detecting small cycle slips is one of key technologies which achieve high precise positioning in real time. The paper analysis the linear combination model of unclifferenced phase observation; compares several methods of detection and reparation for cycle slips, resultingly, the combination with widelane and ionospheric method is more fit for precise point positioning of dual-frequency GPS data. It proves this method effectively by instance.

关 键 词：全球定位系统 精密单点定位 周跳 组合观测值 

分 类 号：P228.1[天文地球—大地测量学与测量工程]