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

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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A Novel GPS Initial Synchronization Scheme with Decomposed Differential Matched Filter

분해형 차분 정합필터를 갖는 새로운 GPS 초기동기 방식

  • 박상현 (충남대학교 전자공학과,(주)네비콤 부설기술연구소) ;
  • 이상정 (충남대학교 정보통신공학부)
  • Published : 2002.02.01
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Abstract

A novel GPS initial synchronization scheme with low hardware complexity is proposed. The proposed method has the decomposed differential matched filter, which consists of 25% multiplier and adder of the conventional matched filter. This paper presents the generalized mean acquisition time of initial synchronization scheme with multiple correlator. It is shown that the proposed method, in spite of its low hardware complexity, has the equal performance to the conventional method. The performance of the proposed method is verified through the simulation test by the GPS simulator. It is shown that the proposed method prevents the squaring loss of non-coherent integration.

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References

  1. W.-C. Lin, K.-C. Liu, and K.-C. Wang, 'Differential matched filter architecture for spread spectrum communication systems,' Electon. Lett., vol. 32, no. 17, pp. 1539-1540, August, 1996 https://doi.org/10.1049/el:19961072
  2. S. Sun and W. A. Krzymien, 'Matched filter based synchronizer design for rapid synchronization of packet data transmissions in ds-cdma personal communications systems,' Proceedings of the 1997 IEEE Pacific Rim Conference, vol. 1, pp. 5-8, 1997 https://doi.org/10.1109/PACRIM.1997.619890
  3. S.-H. Yen and C.-K. Wang, 'A 2V CMOS programmable pipe-lined digital defferential matched filter for DS-CDMA systems,' Porceedings of the AP-ASIC'99, The First IEEE Asia Pacific Conference, pp. 403-404, 1999
  4. Roger L. Peterson, et al., Introduction to Spread Spectrum Communications, Ch.5, Prentice-Hall, Inc. 1995
  5. M. K. Simon, Spread Spectrum Communications Handbook, McGraw Hill Inc., 1994
  6. J. Campanile, 'GPS acquisition performance in the presence of jamming,' Proceedings of the ION GPS'92, pp. 265-274, September, 1992
  7. J. B. Lozow, 'Analysis of direct P(Y) code acquisition,' Navigation: Journal of The Institute of Navigation, vol. 44, no. 1, pp. 89-98, 1997
  8. J. Iinatti and A. Pouttu, 'Differential coherent code acquisition in doppler,' Proceedings of the VTC'99-Fall, vol. 2, pp. 703-707, 1999
  9. J. Iinatti, 'On the threshold setting principles in code acquisition of DS-SS signals,' IEEE Journal on Selected Areas In Communications, vol. 18, no. 1, pp. 62-72, Jan., 2000 https://doi.org/10.1109/49.821719