南京航空航天大学学报（英文版）2005，Vol.22Issue(2)：124-131,8.
GPS精密点定位的数据处理
DATA PROCESSING FOR GPS PRECISE POINT POSITIONING
摘要
Abstract
In the data processing of the precise point positioning (PPP), the un-difference method is commonly used. However, GPS measurements can be differenced with satellites or different observation epochs. In theory, these differencing approaches should be mathematically equivalent. The positioning performance of different PPP data models, including un-difference (UD), satellite difference (SD), time difference (TD) and time-satellite difference (TSD), is examined using the 24 h GPS observation. The positioning accuracy, convergence of ambiguity, and tropspheric delay estimation with these four models are compared with each other.关键词
GPS/精密点定位/误差模型Key words
GPS/precise point positioning/error model分类
航空航天引用本文复制引用
胡丛玮,陈武,高山,陈永奇,丁晓利..GPS精密点定位的数据处理[J].南京航空航天大学学报（英文版）,2005,22(2):124-131,8.基金项目
Supported by the Hong Kong RGC (PolyU 5075/01E and PolyU 5062/02E) Subjects. （PolyU 5075/01E and PolyU 5062/02E）
