对两种GPS解算方案的残差统计检验评估  

ASSESSMENT OF TWO GPS ANALYSIS STRATEGIES WITH STATISTICAL TESTS OF POST FIT RESIDUALS

作　　者：胡小工[1,2] 黄珹[1,2] 廖新浩[1,2] 

机构地区：[1]中国科学院上海天文台,上海200030 [2]中国科学院国家天文观测中心

出　　处：《天文学报》2000年第3期333-336,共4页Acta Astronomica Sinica

基　　金：973项目!"大陆强震机理与预测"(子课题 1 9980 4 0 70 3 );国家攀登项目 !(批准号 970 2 3 1 0 0 3 );中科院重大项目!(KJ951 -1 -

摘　　要：The statistical tests of the post fit residuals are applied to the regional GPS reduction. The strategies of fixed precise orbits and precise point positioning are compared. It is shown that in the former case, conceivable signals, still remain in the post fit redsiduals while in the latter case they are mainly noises. Based on the differences between our solutions with ITRF96 and the repeatabilities of the solutions, it is concluded that the stragegy with reasonable post fit residual statistics is better than others, Statistical tests of the post fit residuals present another evidence that besides accuracy and computation saving, PPP is more preferable than fixed precise orbits in the regional GPS analysis.The statistical tests of the post fit residuals are applied to the regional GPS reduction. The strategies of fixed precise orbits and precise point positioning are compared. It is shown that in the former case, conceivable signals, still remain in the post fit redsiduals while in the latter case they are mainly noises. Based on the differences between our solutions with ITRF96 and the repeatabilities of the solutions, it is concluded that the stragegy with reasonable post fit residual statistics is better than others, Statistical tests of the post fit residuals present another evidence that besides accuracy and computation saving, PPP is more preferable than fixed precise orbits in the regional GPS analysis.

关 键 词：解算评估 残差 GPS 统计检验 

分 类 号：P228.4[天文地球—大地测量学与测量工程]