航空学报 > 2002, Vol. 23 Issue (6): 542-546

一种消除GPS模糊度相关性的新算法

陈树新, 王永生   

  1. 西北工业大学电子工程系 陕西西安 710072
  • 收稿日期:2001-10-29 修回日期:2002-06-13 出版日期:2002-12-25 发布日期:2002-12-25

NEW ALGORITHM FOR GPS AMBIGUITY DECORRELATION

CHEN Shu-xin,WANG Yong-sheng   

  1. Department of Electronic Engineering, Northwestern Polytechnic University, Xi'an 710072, China
  • Received:2001-10-29 Revised:2002-06-13 Online:2002-12-25 Published:2002-12-25

摘要:

通过分析几种典型的整周模糊度去相关处理的方法 ,提出了一种简单快速消除GPS模糊度相关性的算法 ,介绍了算法中排序、整数LDLT 分解和模糊度筛选的处理过程 ,比较了该算法与其它算法性能上的差异 ,最后通过计算说明该算法的高效、可靠。

关键词: GPS, 去相关处理, 排序, 整数LDLT分解, 模糊度筛选

Abstract:

A simple and rapid algorithm for GPS ambiguity decorrelation is proposed by analyzing some typical algorithms for GPS ambiguity decorrelation. The ordering process, integer LDL T factorization and ambiguity screen of the algorithm are introduced. The algorithm's performance is compared with that of others. In the end, the algorithm's high performance and reliability are demonstrated by calculation.

Key words: GPS, decorrelation process, ordering process, integer LDLT factorization, ambiguity screen