GNSS整周模糊度确认理论方法研究进展  

Review of GNSS Ambiguity Validation Theory

作　　者：刘经南[1,2] 邓辰龙[1,2] 唐卫明[1] 

机构地区：[1]武汉大学GNSS中心,湖北武汉430079 [2]武汉大学测绘学院,湖北武汉430079

出　　处：《武汉大学学报（信息科学版）》2014年第9期1009-1016,共8页Geomatics and Information Science of Wuhan University

基　　金：国家杰出青年科学基金资助项目(41325015);国家自然科学基金资助项目(41004014);国家863计划资助项目(2012AA12A202);长江科学院开放研究基金资助项目(CKWV2012312/KY);中央高校基本科研业务费专项资金资助项目(2012214020208)~~

摘　　要：从模糊度确认的理论基础出发,对目前存在的主要模糊度确认方法进行了分类,并对各方法的优缺点进行了分析,强调了各方法的理论背景与实用性情况,并展望了模糊度确认方法的研究前景。Ambiguity resolution is a core issue in high precision GNSS carrier phase positioning, inclu ding both ambiguity estimation and ambiguity validation. Ambiguity estimation fixes the float ambiguity to its integer value utilizing its precision information： an integer least-squares problem. Ambiguity validation evaluates the estimated ambiguity and whether it can be treated as the correct： a probability statistics problem. Incorrectly validated ambiguity can lead to wrong positioning results at the decime- ter or larger bias. Therefore, ambiguity validation will have a direct impact on the reliability of ambi guity resolution and positioning results based on the theory of ambiguity validation. We introduce several widely used ambiguity validation methodologies. The advantages and disadvantages of each method are compared and analyzed, from the perspective of the background theory and practicability. At last, we address the outlook for future research in ambiguity validation.

关 键 词：模糊度确认 数学模型 成功率 假设检验 整数孔径估计 

分 类 号：P228.41[天文地球—大地测量学与测量工程]