Algorithm realization and simulation of gravity matching aided navigation based on maximum correlation

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Algorithm realization and simulation of gravity matching aided navigation based on maximum correlation

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- Algorithm realization and simulation of gravity matching aided navigation based on maximum correlation
- Optics and Precision Engineering Vol. 17, Issue 4, Pages: 832-838(2009)
- 作者机构：
  
  空军航空大学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：22 October 2007，
  
  Revised：29 February 2008，
  
  Published Online：25 April 2009，
  
  Published：25 April 2009
- 稿件说明：
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王浩. 基于相关极值的重力匹配辅助导航算法的实现与仿真[J]. 光学精密工程, 2009,17(4):832-838

Algorithm realization and simulation of gravity matching aided navigation based on maximum correlation[J]. Optics and precision engineering, 2009, 17(4): 832-838.
王浩. 基于相关极值的重力匹配辅助导航算法的实现与仿真[J]. 光学精密工程, 2009,17(4):832-838 DOI：

Algorithm realization and simulation of gravity matching aided navigation based on maximum correlation[J]. Optics and precision engineering, 2009, 17(4): 832-838. DOI：

摘要

对惯性、重力匹配组合导航算法进行了描述和分析，提出了一种新的基于相关极值的重力匹配辅助导航算法。该算法对已有数字重力图进行细化，在重力图寻值过程中有效地剔除了干扰数据，并且对基于相关极值的重力匹配算法进行了有效地改进。仿真结果表明，该算法能较好地抑制了重力数据的误差影响和提高匹配精度，能有效地消除厄缶（）效应对重力匹配的影响，大大提高重力匹配的速度，以达到实时导航的目的，更适合水下导航实际的需要。

Abstract

The algorithm of INS/gravity matching integrated navigation is presented and analyzed

and an new gravity matching aided navigation algorithm based on maximum correlation theory is put forward. The new algorithm can subdivide the gravity map and eliminate large numbers of interferential data through the constraint condition in data gravity map searching process

and it can improve the algorithm of gravity matching based on maximum correlation effectively. The result of simulation proves that the new algorithm can be more effective and more adaptive to restrain the errors of the gravity data

to improve the orientation precision

to decrease the influence of Eotvos effect on gravity matching

and to speed up gravity matching for navigation in real-time. The algorithm of INS/gravity matching integrated navigation is more suitable for meeting the requirement of the actual underwater navigation.

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Related Institution

Key Laboratory for Micro/Nano Technology and System of Liaoning Province ofDalian University of Technology

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