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.
出处
《大地测量与地球动力学》
CSCD
北大核心
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)
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
DCB （ Differential Code Bias）
long-term variations
GPS
CODE （ Center for Orbit Determination inEurope）
periodicity
