An Algorithm of Tri-frequency Ambiguity Resolution on Single-epoch
SHEN Xiaoyun
YANG Liping
JIAO Weidong
Abstract：The higher accuracy of positioning with carrier observation can be given by using relative positioning and the key is how to calculate the ambiguity resolution fast and correctly. In this paper,firstly the ambiguity resolution of two frequencies calculat?ed by the wide-lane and narrow-lane combination method is studied. Then based on the method,the algorithm of tri-frequency am?biguity resolution on single-epoch is proposed and the tri-frequency ambiguity resolutions are calculated by expanding third carrier observations. The result of ambiguity resolution calculated by the wide-lane and narrow-lane method is regarded as reference. The validity of resolving integer ambiguity is verified by simulation experiment and the impact of different receivers in the same place at the same time on the two satellite navigation systems of satellite signal ambiguity is compared. The results indicate that the integer ambiguity can be fixed at single-epoch with tri-frequency ambiguity resolution,and the efficiency of the algorithm is better than the wide-lane and narrow-lane combination method.
Keywords：integer ambiguitytri-frequencymulti-frequencyBDSGPS
Publication Date：2019-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 1287-1292 )