A difference acquisition algorithm for Beidou B1 MEO/IGSO satellite

Xing Yongqiang; Huang Haisheng; Cao Xinliang

doi:10.16157/j.issn.0258-7998.174255

Dianzi Jishu Yingyong (Jun 2018)

A difference acquisition algorithm for Beidou B1 MEO/IGSO satellite

Xing Yongqiang,
Huang Haisheng,
Cao Xinliang

Affiliations

Xing Yongqiang: School of Electronic Engineering，Xi′an University of Posts and Telecommunications，Xi′an 710121，China
Huang Haisheng: School of Electronic Engineering，Xi′an University of Posts and Telecommunications，Xi′an 710121，China
Cao Xinliang: School of Physics and Electronic Information，Yan′an University，Yan′an 716000，China

DOI: https://doi.org/10.16157/j.issn.0258-7998.174255
Journal volume & issue: Vol. 44, no. 6
pp. 90 – 93

Abstract

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A difference acquisition algorithm for Beidou B1 MEO/IGSO satallite is proposed by improving the acquisition algorithm of GPS signal.It can be used to solve the problem that NH code in Beidou B1 MEO/IGSO satallite makes the acquisition more difficult. Firstly,a new pseudo-random code is generated by modulating the Neumann-Hoffman(NH) code onto the C/A code to lengthen the coherent time. Then,the result of coherent integration is calculated by the differential accumulation method.Finally,according to the maximum criterion of the cumulative result, the sign of the differential term can be determined and the best combination can be obtained. Simulation result shows the gain can be improved 2 dB～3 dB by the algorithm.

Published in Dianzi Jishu Yingyong

ISSN: 0258-7998 (Print)
Publisher: National Computer System Engineering Research Institute of China
Country of publisher: China
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Electronics
Website: http://journal.chinaaet.com/en

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