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Interpolation Method Research and Precision Analysis of GPS Satellite Position

Author

Listed:
  • Wang Jianmin
  • Li Yabo
  • Zhu Huizhong
  • Ma Tianming

    (School of Geomatics, Liaoning Technical University, Fuxin123000, China)

Abstract

According to the precise ephemeris has only provided satellite position that is discrete not any time, so propose that make use of interpolation method to calculate satellite position at any time. The essay take advantage of IGS precise ephemeris data to calculate satellite position at some time by using Lagrange interpolation, Newton interpolation, Hermite interpolation, Cubic spline interpolation method, Chebyshev fitting method respectively, which has a deeply analysis in the precision of five interpolations. The results show that the precision of Cubic spline interpolation method is the worst, the precision of Chebyshev fitting is better than Hermite interpolation method. Lagrange interpolation and Newton interpolation are better than other methods in precision. Newton interpolation method has the advantages of high speed and high precision. Therefore, Newton interpolation method has a certain scientific significance and practical value to get the position of the satellite quickly and accurately.

Suggested Citation

  • Wang Jianmin & Li Yabo & Zhu Huizhong & Ma Tianming, 2018. "Interpolation Method Research and Precision Analysis of GPS Satellite Position," Journal of Systems Science and Information, De Gruyter, vol. 6(3), pages 277-288, June.
    • Handle: RePEc:bpj:jossai:v:6:y:2018:i:3:p:277-288:n:7
    DOI: 10.21078/JSSI-2018-277-12
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