整周模糊度整数变换前后LAMBDA方法的执行结果比较  

Comparison between performance results for LAMBDA method before and after the integer transformation of ambiguity

作　　者：周扬眉[1] 刘经南[2] 高振东[1] 

机构地区：[1]武汉大学GPS工程研究中心,湖北430079 [2]武汉大学校长办公室,湖北430070

出　　处：《全球定位系统》2004年第2期2-5,共4页Gnss World of China

摘　　要：首先介绍了求取模糊度整数解的整数最小二乘方法的基本原理和LAMBDA方法 ,然后讨论了降相关的可容许整数变换对于LAMBDA方法求取双差模糊度整数解的影响。通过一个短基线的实例计算发现 :对原始的双差模糊度进行降相关的可容许整数变换 ,不仅可提高模糊度整数解的准确性 ,而且还能提高模糊度的求取速度。In this paper, firstly the basic principles of both the integer learst square method and the LAMBDA method for resolving the integer ambiguity solution are introduced, then the influence of the decorrelating admissible integer transformation on the integer ambiguity solution using LAMBDA method is discussed. It is discovered through a short-baseline example that the decorrelating admissible integer transformation for original dual-differenced ambiguity may improve not only the rightness of integer ambiguity solution but also the resolving speed of ambiguity.

关 键 词：精密定位 模糊度整数解 可容许整数变换 LAMBDA方法 GPS 

分 类 号：P228.4[天文地球—大地测量学与测量工程]