GPS 差分定位中一种新的接收机钟差处理方法.pdf

第 29 卷第 2 期黑 龙 江 工 程 学 院 学 报 Vol畅29 ,No畅2 2015 年 4 月 Journal of Heilongjiang Institute of Technology Apr .,2015G PS 差分定位中一种新的接收机钟差处理方法姜本朋,宋福成,鹿德凯,樊剑平,王洪亮(中国矿业大学(北京)地球科学与测绘工程学院,北京 100083)摘 要:在 GPS 伪距差分测量中,针对基准站和流动站之间接收机钟差的处理提出一种新的解决方法,该方法不需将接收机钟差作为未知参数来与流动站坐标参数一并求解,而是采取一种预先处理的方式。通过该方法,基准站和流动站只需同步观测 3 颗以上相同卫星便可求解流动站的位置坐标,不仅减少方程中未知数的数量,减轻计算和存储的负担,而且当流动站处于遮挡严重或者卫星信号较差的情况下,相比之前更有利于求解流动站的位置坐标。关键词:伪距差分;接收机钟差;位置坐标;预先处理;同步观测中图分类号:P228 .4 文献标志码:A 文章编号:1671‐4679(2015)02‐0027‐03A new processing method about receiver clock errorin differential GPS positioningJIANG Ben‐peng ,SONG Fu‐cheng ,LU De‐kai ,FAN Jian‐ping ,WANG Hong‐liang(School of Earth Sciences and Surveying Engineering ,China University of Mining & Technology (Bei Jing ) ,Beijing 100083 ,China)Abstract :According to the GPS pseudo range difference measurements ,a new method is proposed aboutthe receiver clock error processing between the base station and mobile station ,which does not need totreat the receiver clock error as unknown parameters and to solve the unknown coordinate parameters ofmobile station in the way of pre‐processing . The parameters of mobile station can be solved with thismethod by using three more of the same simultaneous observation satellites ,which not only reduces thenumber of unknown parameters in the equation ,reduces the burden puting and storage ,but whenthe mobile station is in s