Gravity Aided Navigation Precise Algorithm with Gauss Spline Interpolation

  • WEN Chaobin ,
  • WANG Yuegang ,
  • GUO Zhibin ,
  • TIAN Qi ,
  • ZUO Zhaoyang ,
  • JIANG Xinlei
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  • 1. The Second Artillery Engineering University, Xi'an 710025, China;
    2. Unit 96124, Tonghua 134000, China

Received date: 2014-01-28

  Revised date: 2014-10-24

  Online published: 2015-01-22

Supported by

National Defense Pre-research(103030203)

Abstract

The gravity compensation of error equation thoroughly should be solved before the study on gravity aided navigation with high precision. A gravity aided navigation model construction algorithm based on research the algorithm to approximate local grid gravity anomaly filed with the 2D Gauss spline interpolation is proposed. Gravity disturbance vector, standard gravity value error and Eotvos effect are all compensated in this precision model. The experiment result shows that positioning accuracy is raised by 1 times, the attitude and velocity accuracy is raised by 1~2 times and the positional error is maintained from 100~200 m.

Cite this article

WEN Chaobin , WANG Yuegang , GUO Zhibin , TIAN Qi , ZUO Zhaoyang , JIANG Xinlei . Gravity Aided Navigation Precise Algorithm with Gauss Spline Interpolation[J]. Acta Geodaetica et Cartographica Sinica, 2015 , 44(1) : 13 -18 . DOI: 10.11947/j.AGCS.2015.20130741

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