DOI QR코드

DOI QR Code

GPS 시스템의 C/A 부호 생성 알고리듬의 분석

Analysis of Coarse Acquisition Code Generation Algorithm in GPS System

  • 장위 (북경석유화공학원) ;
  • 서희종 (전남대학교 전남통신공학과)
  • 투고 : 2016.12.28
  • 심사 : 2017.02.24
  • 발행 : 2017.02.28

초록

본 논문에서는 민간용으로 사용되는 GPS 시스템의 C/A 부호(Coarse Acquisition Code)를 연구, 모의실험하고, 분석하였다. 모의실험은 Matlab을 사용하였다. 실제의 GPS 신호를 해석하는 문제를 모의실험을 한 결과, 이 부호 문제의 융통성과 정확성을 확인할 수 있었다. 이의 방법의 응용으로 위성신호를 정확하게 추적할 수 있게 할 수 있고, 위성수신기의 성능을 향상시키는데 도움이 될 것이다.

In this paper, the coarse acquisition code (C/A code), for civil navigation, of the ranging codes for Global Positioning System (GPS) is studied, simulated and analyzed by using Matlab. We can see with the simulation results that the correctness of the method and feasibility, which is at simulation platform to further study on the real environment of GPS signal, can be confirmed. With using this results, we think, the complexity of tracking the satellite signal environment can be captured, and the performance of satellite receiver will be improved.

키워드

참고문헌

  1. J. Tsui, Fundamentals of Global Positioning System Receivers. New York : John Wiley & Sons, Inc, 2005.
  2. J. Akopian and S. Agaian, "A Fast Position Recovery Approach for GPS Receivers in Jamming Environments and a Recommendation for Future GPS Signal Structure," Military Communications and Innovation(MILCOM), Geneva, Switzerland, Jan., 2005.
  3. E. Kaplan, Understanding GPS: Principles and Applications. Seoul, Korea: Artech House, 1996.
  4. A. El-Rabbany, Introduction to GPS. The Global Positioning System. San Antonio: Artech House, 2002.
  5. GPS Navstar, "Global Positioning System Standard Positioning Service Signal Specification," 2nd Edition, Technical Repor), GPS Joint Program Office, June 1995.
  6. Y. Suh, "A Comparision of Raptor Code Using LDGM and LDPC Code," J. of the Korean Institute of Electronic Communication Sciences, vol. 8, no. 1, 2013, pp. 65-70. https://doi.org/10.13067/JKIECS.2013.8.1.065
  7. S. Chen and H. Suh, "An Effective Decoding Algorithm of LDPC Codes with Lowering Error Floors," J. of the Korean Institute of Electronic Communication Sciences, vol. 9, no. 10, 2014, pp. 1111-1116. https://doi.org/10.13067/JKIECS.2014.9.10.1111
  8. H. Chen and H. Suh, "An Improved Bellman-Ford Algorithm based on SPFA," J. of the Korean Institute of Electronic Communication Sciences, vol. 7, no. 4, 2012, pp. 721-726.