A Study of Threshold Determination of The GPS measurement failure using GPS Code-Carrier Divergence Test

GPS 의사거리-반송파 위상 측정치의 고장검출을 위한 임계값 결정 연구

  • 손은성 (한국항공우주연구원 위성항법팀) ;
  • 김군택 (한국항공우주연구원 위성항법팀) ;
  • 임성혁 (한국항공우주연구원 위성항법팀) ;
  • 이은성 (한국항공우주연구원 위성항법팀) ;
  • 허문범 (한국항공우주연구원 위성항법팀) ;
  • 남기욱 (한국항공우주연구원 위성항법.응용기술센터)
  • Received : 2015.09.14
  • Accepted : 2016.03.25
  • Published : 2016.03.31


In this study, The code-carrier divergence test was applied to GPS measurements, and the results were compared and analyzed. The GPS data used for the threshold determination were obtained from Global Navigation Satellite System permanent stations built by the Korea Aerospace Research Institute. At each permanent station, identical dual-frequency receiver and choke ring antenna with radome are installed. The analysis method, root mean square values were compared and analyzed for each permanent station and satellite. As a result, the root mean square value generally decreased as the satellite elevation angle increased although the trend was gentle. Threshold were finally selected based on the average and standard deviation of root mean square for each permanent station. For improving of availability and continuity in real-time operation when the threshold is over the limits, Code-Carrier divergence test values are initialized.


Supported by : 국토교통부


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