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A Proposed Selection and Allocation of Spread-Spectrum Code for Compass B1C Signal

  • Jue WangEmail author
  • Yao Wang
  • Zaixiu Yang
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 304)

Abstract

In the future, BD Satellites Navigation System (Compass) is going to use B1C signal for compatibility and interoperation with such GNSS as GPS and Galileo. As an important step in B1C signal design, the design of spread-spectrum (SS) code involves construction, selection and allocation of the codes. Based on an analysis of the L1-band pseudo-code characteristics of GPS and Galileo, the researcher optimally selected 100 SS codes from the optimal codes set of 10,243 bits-long Weil codes using greedy algorithm. With the autocorrelation up to −31.57 dB and the cross correlation up to −27.44 dB, all these SS codes are superior to GPS L1C and Galileo E1OS pseudo codes in performance. Besides, a pseudo-code allocation method developed under the minimum ranging error principle was adopted for rational allocation of the data and pilot branches for the proposed B1C pseudo codes. The simulation and comparative analysis showed that the findings were of great significance for the signal design of Compass in the future.

Keywords

Satellite navigation system B1C Weil code PRN Autocorrelation Cross correlation 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.The 54th Institute of China Electronic Technology CorporationShijiazhuang HebeiChina
  2. 2.Hebei Satellite Navigation Technology and Equipment Technlogy CenterShijiazhuang HebeiChina

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