Proceedings of the Korean Institute of Navigation and Port Research Conference (한국항해항만학회:학술대회논문집)

Korean Institute of Navigation and Port Research (한국항해항만학회)
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Galileo BOC(1,1) Signal Tracking using GPS/Galileo Software Receiver

  • Lim, Deok-Won (Department of Electronics Engineering, Chungnam Nat'l Univ.) ;
  • Park, Chan-Sik (School of Electrical and Computer Engineering, Chungbuk Nat'l Univ.) ;
  • Lee, Sang-Jeong (School of Electrical and Computer Engineering, Chungnam Nat'l Univ.)
  • Published : 2006.10.18
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Abstract

In this paper, a design and implementation of GPS/Galileo software receiver is given. As a GPS receiver, it is able to perform every function of receiver such as acquisition, code and carrier tracking, navigation bit extraction, navigation data decoding, pseudorange calculations, and position calculations. A method to acquire and track the Galileo BOC(1,1) signal is also required because the correlation of BOC(1,1) signal has multiple peaks different from that of GPS signal. Therefore, a method to detect the main-peak in correlation function of BOC signal is required to avoid false acquisition. In this paper, very-early, very late correlation is implemented to track the correct main peak. The performance of implemented GPS/Galileo software receiver with BOC(1,1) signal tracking feature is evaluated with GPS/Galileo IF signal generator.

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