GPS RMBS起算点偏差对定位影响的研究  

Study on the influence of the reference points deviation on the positioning in GPS RMBS

作　　者：刘立龙[1] 唐诗华[1] 文鸿雁[1] 

机构地区：[1]桂林工学院土木工程系,广西桂林541004

出　　处：《测绘科学》2008年第2期60-61,66,共3页Science of Surveying and Mapping

基　　金：国家自然科学基金项目(40574002);广西区自然科学基金项目(0542002);桂林工学院博士基金项目

摘　　要：GPS RMBS(Relative Moving Baseline System)在工程中有许多重要的应用,例如,远洋编队航行、舰载飞机着舰、编队飞行、空中加油等,但在RMBS中需要伪距单点定位来提供起算点。本文讨论了伪距单点实时定位的精度,由于其精度有限,导出了该起算偏差对定位影响的模型。通过实验,其实算结果表明:由伪距实时单点定位来作为起算点,无论对于基线长还是基线分量都有影响,并且对基线分量的影响大于总基线,但对于10km范围内,其影响仍可以满足cm级高精度的相对定位要求。There are a lot of important applications in engineering for GPS RMBS （ Relative Moving Baseline System） , such as in voyage and in air refueled, etc. But reference points need to be provided by pseudoranges single point positioning. The real-time positioning precision of the pseudoranges single point is discussed. Because the precision is not high enough, and there are coordinates deviation in references points, the influence of the reference point deviation on the positioning model is educed. The experiment results show that with pseudoranges single point real-time positioning as the reference points, both the length of baseline and the baseline weigh will be influenced, and the influence on the baseline weigh is stronger than the length of baseline, but within an area of 10 km, its influence can still meet the need of cm-level precise relative positioning.

关 键 词：GPS RMBS 起算点 坐标偏差 

分 类 号：P228[天文地球—大地测量学与测量工程]