A Study on the Navigation Parameters of L1, C/A GPS through the Experimental and Statistical Analysis

실험 및 통계적 분석을 통한 L1, C/A코드 GPS의 항법 파라미터연구

  • Received : 2015.05.17
  • Accepted : 2015.06.24
  • Published : 2015.08.31


This research was focused on the analysis of navigation parameters from the received L1, C/A signal of the recent GPS, which has advanced with the SA policy change and the GPS modernization policy by the United States. It was done as a first step study for a comprehensive analysis on the multiple satellite navigation systems which will be adding or separating GPS signal. In particular, the statistical analysis on the GDOP change and positional accuracy based on the geocentric and spherical coordinate systems were investigated with carrier- to-noise ratio and the satellite geometry, The obtained GDOP values of HDOP, PDOP, VDOP are 0.5, 1.2, and 1.1, respectively in deviation. In addition, the positioning accuracies with these GDOP values were analyzed in the ellipsoidal and ECEF coordinates.


SA;Navigation Parameter;GDOP;Position Accuracy;Multi-GNSS


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