Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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The Fast Signal Acquisition Scheme for a GPS Ll/L2C Correlator

GPS Ll/L2C 상관기를 위한 빠른 신호 획득 기법

  • 임덕원 (충남대학교 전자공학과) ;
  • 문승욱 (㈜네비콤 부설기술연구소) ;
  • 박찬식 (충북대학교 전기전자컴퓨터공학부) ;
  • 이상정 (충남대학교 전기정보통신공학부)
  • Published : 2006.07.01
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Abstract

The L2 Civil Signal (L2CS) will be transmitted by modernized IIR(IIR-M), IIF and all subsequent GPS satellites. It contains two codes of different length; CM code contains 10,230chips, repeats every 20milliseconds and is modulated with message data, and CL code contains 767,250chips, repeats every 1.5second Z-count and has no data modulation. And the message data is encoded for Forward Error Correction(FEC). The long code length is useful for weak signal, but it also requires very long acquisition time. Therefore, the structure of GPS Ll/L2C Correlator and the fast acquisition scheme are proposed in this paper.

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References

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