BDS三频约束的多系统短基线模糊度单历元固定算法  

One-epoch ambiguity resolution method for multiple GNSS short baseline with BDS triple-frequency signals constrains

作　　者：刘扬 余学祥 王胜利 柴大帅 LIU Yang;YU Xuexiang;WANG Shengli;CHAI Dashuai(School of Geodesy and Geomatics,Anhui University of Science and Technology,Huainan,Anhui 232001,China;Institute of Ocean Engineering,Shangdong University of Science and Technology,Qingdao, Shandong 266590,China;School of Environment Science and Spatial Informatics,China University of Mining and Technology, Xuzhou,Jiangsu 221116,China)

机构地区：[1]安徽理工大学测绘学院,安徽淮南232001 [2]山东科技大学海洋工程研究院,山东青岛266590 [3]中国矿业大学环境与测绘学院,江苏徐州221116

出　　处：《导航定位学报》2018年第3期55-59,共5页Journal of Navigation and Positioning

基　　金：国家自然基金项目(41474026);安徽理工大学研究生创新基金项目(2017CX2056)

摘　　要：为了进一步快速可靠地固定GNSS差分模糊度,提出一种适用于短基线的GNSS三频单历元模糊度固定方法:利用BDS三频模糊度较容易固定的特点,首先固定BDS三频载波组合观测值(0,-1,1)和(1,4,-5)的超宽巷双差模糊度,再求出(1,-1,0)组合的宽巷模糊度,然后与BDS B1载波观测方程联立求出B1频点的模糊度,最后利用模糊度已固定的B1频点观测方程与GNSS L1频点载波观测方程联立求出L1差分模糊度。实验结果表明,利用该方法固定短基线模糊度成功率可达98.73%。In order to further efficiently carry out the resolution of differential ambiguity for GNSS,the paper proposed a single epoch ambiguity resolution method of GNSS triple-frequency signals for short baseseline,taking advantage of the easy resolution of BDS triple-frequency ambiguity,the ultra wide lane double difference ambiguity of BDS triple-frequency carrier combination of(0,-1,1)and(1,4,-5)were fixed,and the wide lane ambiguity of(0,-1,1)combination was solved and integrated with BDS B1 carrier observation equations to get the ambiguity of B1,finally the BDS B1 observation equations were combined with GNSS L1 carrier observation equations to obtain the ambiguity of L1.Experimental result showed that the ambiguity resolution for short baseline with the proposed method could achieve a success rate of 98.73%.

关 键 词：模糊度固定 单历元 短基线 三频载波信号 

分 类 号：P228[天文地球—大地测量学与测量工程]