BeiDou Signal Acquisition based on a New Double Block Zero-padding Method

Shan Xu, Falin Wu, Chenghao Geng

Abstract:	This paper provided a detailed analysis of the side effect of bit sign transitions caused by NH codes, and proposed a BeiDou signal acquisition method based on new double block zero-padding (NDBZP) which could overcome bit sign transition problem, extend coherent integration time, remove NH code and improve estimate precision of Doppler shift simultaneously. The proposed method could achieve higher acquisition sensitivity comparing with traditional methods under same SNR environment. To validate the proposed method, this paper designed simulation experiments to compare NDBZP method with traditional methods in terms of computation complexity and detection probability under different SNR environments. The simulation results demonstrated that the proposed method could overcome bit sign transition problem caused by NH codes, and had excellent acquisition performance.
Published in:	2018 IEEE/ION Position, Location and Navigation Symposium (PLANS) April 23 - 26, 2018 Hyatt Regency Hotel Monterey, CA
Pages:	1414 - 1421
Cite this article:	Xu, Shan, Wu, Falin, Geng, Chenghao, "BeiDou Signal Acquisition based on a New Double Block Zero-padding Method," 2018 IEEE/ION Position, Location and Navigation Symposium (PLANS), Monterey, CA, April 2018, pp. 1414-1421. https://doi.org/10.1109/PLANS.2018.8373534
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