GPS接收机仪器偏差的长期变化特性分析  

ANALYSIS OF LONG-TERM VARIATIONS OF GPS RECEIVERS' DIFFERENTIAL CODE BIAS

作　　者：周东旭[1,2] 袁运斌[1] 李子申[1,2] 刘西凤[1] 

机构地区：[1]中国科学院测量与地球物理研究所动力大地测量学重点实验室,武汉430077 [2]中国科学院研究生院,北京100049

出　　处：《大地测量与地球动力学》2011年第5期114-118,共5页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金(40890160;41021003;40625013);中国科学院研究生科技创新实践项目(Y005381038);导航年会青优资助课题(CSNC2010-QY-013);国家863计划项目(2008AA12Z303)

摘　　要：基于欧洲定轨中心2001—2009年发布的部分IGS测站接收机仪器偏差估值,分析了不同类型接收机DCB的长期变化特性。结果表明:各类接收机DCB的长期时变特征均具备一定的周期性,其中以月和年周期最为明显;接收机DCB的长期变化中还存在一定的波动,部分接收机DCB的稳定性随时间积累逐渐变差,甚至存在偏移。The long-term variations of a variety of GPS receivers’ DCB were analyzed based on the DCB published by the Center for Orbit Determination in Europe during 2001—2009.The results show that there are periodic behaviors in the time-series of the change receivers’ DCB,among then the monthly and yearly periods are the most predominant.In addition,certain fluctuations underlying the long-term behaviors in GPS receivers’ DCB can also be found,and some of the GPS receivers may suffer the deterioration of DCB stability,or even somewhat deviation.

关 键 词：接收机仪器偏差 长期变化 全球导航卫星系统 欧洲定轨中心 周期性 

分 类 号：P227[天文地球—大地测量学与测量工程] P207[天文地球—测绘科学与技术]