제어로봇시스템학회:학술대회논문집

제어로봇시스템학회 (Institute of Control, Robotics and Systems)
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Design of Software GPS L2 Civil Signal Generator (ICCAS 2003)

  • Seo, Sam-Suk (GNSS Technology Research Center, Department of Electronics Engineering, Chungnam National University) ;
  • Cho, Deuk-Jae (GNSS Technology Research Center, Department of Electronics Engineering, Chungnam National University) ;
  • Lee, Sang-Jeong (GNSS Technology Research Center, Department of Electronics Engineering, Chungnam National University)
  • 발행 : 2003.10.22
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초록

This paper designs a software signal generator for the new GPS L2 civil signal. The CM/CL code and the message structure of L2CS described in GPS ICD PPIRN-200C-007 are used in designing the signal generator. The output of the GPS signal generator is designed as the sampled IF data with the sampling frequency 5.7MHz and stored in the binary data format. By analyzing both the spectrum characteristics of the output signal and the correlation properties of the CM/CL code, the validation of the designed GPS signal generator is shown. It should be mentioned that the modeling of the GPS satellite constellation and the error sources remains for implementing the software space segment of GPS.

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