GPS双天线定向系统及优化模糊度搜索算法  

Optimized GPS Carrier Phase Ambiguity Search Algorithm and GPS Double Antenna Orientation System

作　　者：王先全[1] 吴敏[2] 冯济琴[1] 董淳[1] 

机构地区：[1]重庆理工大学电子学院,重庆400050 [2]重庆理工大学车辆学院,重庆400050

出　　处：《测绘科学技术学报》2009年第5期316-320,共5页Journal of Geomatics Science and Technology

基　　金：国家自然科学基金资助项目(50575235);重庆市自然科学基金资助项目(2008BB2336)

摘　　要：研究了GPS载波相位双差测量方向的原理和应用最小二乘法解算基线矢量的方法;提出了快速解算整周模糊度的优化算法。实验表明,采用基线长度作为约束条件,应用GPS双天线测量方向的原理和搜索模糊度优化算法正确,其定向精度达0.12°,解算时间小于0.3 s。Theory of measuring orientation using GPS double-differential carrier-phase and method of solving baseline vector using least square method were researched. The optimized algorithm of fast solving integer ambiguityI was proposed. Experiments indicated that taking baseline length as constraint condition, theory of GPS double-antenna measurement and the optimized algorithm of fast solving integer ambiguity were correct. Its orientation precision could achieve 0.12° and calculating time was less than 0.3 s.

关 键 词：全球定位系统 载波相位 整周模糊度 短基线 定向系统 

分 类 号：P228[天文地球—大地测量学与测量工程] TM966[天文地球—测绘科学与技术]