Open AccessResearch on Beidou B1C Signal Joint Tracking Algorithm Based on Pseudo Correlation Function
Author(s) -
Wenjie Hao,
Weiping Gong
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1544/1/012013
Subject(s) - binary offset carrier modulation , algorithm , computer science , signal (programming language) , offset (computer science) , tracking (education) , joint (building) , channel (broadcasting) , telecommunications , engineering , bit error rate , architectural engineering , psychology , pedagogy , decoding methods , quadrature amplitude modulation , programming language
The Beidou B1C signal is a new type of navigation signal used by the Beidou III system. Compared with traditional satellite navigation signals, this navigation signal has two significant characteristics: one is the use of BOC(Binary-Offset-Carrier) modulation, and the other is the separation of the data channel and the pilot channel. BOC modulation has multi-peak characteristics, which leads to ambiguity in tracking, while the PCF(Pseudo-Correlation-Function) algorithm can eliminate related secondary peaks of the BOC signal; the separation of the data channel and the pilot channel results in the dispersion of signal energy. Therefore, based on the PCF algorithm, this paper proposes a linear joint tracking algorithm suitable for B1C signals from the perspective of engineering applications. Finally, it is verified that the tracking accuracy of the proposed algorithm is better than the single-component PCF tracking algorithm.