DOI QR코드

DOI QR Code

Accuracy Analysis of Precise Point Positioning Using Predicted GPS Satellite Orbits

GPS 예측궤도력을 이용한 정밀단독측위 정확도 분석

  • Received : 2012.10.03
  • Accepted : 2012.10.30
  • Published : 2012.10.30

Abstract

In this paper, near-real-time positioning accuracies of precise point positioning technique were analyzed using IGS predicted orbits. As a result, we could get the mean errors of 1~1.6 cm, standard deviation of 1~1.3cm from one year of GPS data. This results were similar level to positioning accuracy using the IGS rapid orbits. Positioning errors of >10cm showed 44% of observed days of orbital anomalies. When the orbital anomalies of the predicted orbits were shown, maximum error was 1.7 km, and maximum of mean errors was 308 m. From this study, we conclude that check and consideration were necessary before using the IGS predicted orbits.

Keywords

GPS;Predicted Orbits;Precise Point Positioning;Positioning Accuracy

References

  1. 하지현, 허문범, 남기욱, "GPS기반 준실시간 위치추적을 위한 IGS 예측궤도력이상 검출", 한국항행학회지, 제 15권, 제 6호, pp. 953-961, 2011, 12.
  2. F. H. Webb, and J. F. Zumberge, An introduction to the GIPSY/OASIS-II, JPL Pulb., Pasadena, CA, July 1993.
  3. 박관동, 조정호, 하지현, 임형철, "초신속궤도력을 이용한 신속한 고정밀 GPS 데이터처리", 한국측량학회지, 제 21권, 제 4호, pp. 309-316, 2003, 12.
  4. L. P. Kruse, B. Sierk, T. Springer, and M. Cocard, "GPS-meteorology: Impact of predicted orbits on precipitable water estimates", Geophysical Research Letters, Vol. 26, No. 14, pp. 2045-2048, July 1999. https://doi.org/10.1029/1999GL900383
  5. 김혜인, 위성측위 가용성 및 정확도 향상 평가를 위한 통합 GNSS 시뮬레이터 개발, 석사학위논문, 인하대학교, 103pp. 2009, 2.
  6. http://igscb.jpl.nasa.gov
  7. http://igscb.jpl.nasa.gov/components/prods.html
  8. 하지현, 준실시간 3차원 수증기 분포도 결정을 위한 고정밀 GPS 자료처리 전략, 박사학위논문, 인하대학교, 162pp, 2009, 2.
  9. http://www.navcen.uscg.gov
  10. http://www.schriever.af.mil/GPS

Cited by

  1. Quality Assessment of Tropospheric Delay Estimated by Precise Point Positioning in the Korean Peninsula vol.3, pp.4, 2014, https://doi.org/10.11003/JPNT.2014.3.4.131

Acknowledgement

Grant : 재난예방 및 국민안전제고를 위한 위성기반 위치추적기술 연구

Supported by : 기초기술연구회