卫星星历误差对GPS定位精度的影响与分析  

Effect and Analyse of Broadcast Ephemeris Errors on GPS Survey Precision

作　　者：焦海松 王红芳 姚飞娟 

机构地区：[1]63880部队

出　　处：《全球定位系统》2009年第1期24-28,共5页Gnss World of China

摘　　要：分析了广播星历误差对GPS单点定位精度的影响,通过引入精密星历处理某机载GPS数据检验了广播星历误差对GPS单点定位的影响程度;理论推导了广播星历误差对单基站差分GPS数据的影响及规律,同时通过引入精密星历差分处理某机载GPS数据对广播星历误差的影响程度及规律进行了验证。The effect of broadcast ephemeris errors on precision of GPS point positioning is analyzed, and the effective level of broadcast ephemeris errors on GPS point positioning is verified by means of differential technical processing on airborne GPS data by using precise ephemeris. The effective level and law o＇f broadcast ephemeris errors on single-reference station DGPS surveying data is introduced. At the same time, the effective level and law of broadcast ephemeris errors by means of differential tech- nical processing on airborne GPS data using precise ephemeris are also validated.

关 键 词：星历误差 GPS 精度 

分 类 号：P701[天文地球—海洋科学]