导航

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2002, Vol. 23 ›› Issue (6): 542-546.

Previous Articles     Next Articles

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

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