Timing for the Loran-C signal by Beidou satellite and error correction for the transmission time

Author

Yang Kai Feng ; Jian Xun Li

Author_Institution

Comput. Sci. & Eng. Sch., Xi´an Univ. of Technol., Xi´an

fYear

2008

fDate

19-21 May 2008

Firstpage

476

Lastpage

478

Abstract

The capability of positioning of Beidou/Loran-C integrated navigation system is restricted by the transmitting precision of Loran-C signal. In this paper, the wavelet shrinkage de-noising method of correction for the transmission time error of Loran-C signal, which is timed by the Beidou satellite, is discussed. Getting the random offset from the time difference, and then, adopting the soft-threshold function and the SUREShrink estimation in the de-noising. The results demonstrated that the transmission time error was decreased about 30 ns, and the performance of three dimension positioning was improved evidently through the method in the experiment.

Keywords

error correction; radionavigation; satellite navigation; signal denoising; timing; wavelet transforms; Beidou-Loran-C integrated navigation system; Loran-C signal transmitting precision; random offset; soft-threshold function; sureshrink estimation; three dimension positioning system performance; timing; transmission time error correction; wavelet shrinkage de-noising method; Computer errors; Error correction; Frequency synchronization; Global Positioning System; Noise reduction; Satellite broadcasting; Satellite navigation systems; Signal generators; Time measurement; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium, 2008 IEEE International

Conference_Location

Honolulu, HI

ISSN

1075-6787

Print_ISBN

978-1-4244-1794-0

Electronic_ISBN

1075-6787

Type

conf

DOI

10.1109/FREQ.2008.4623044

Filename

4623044