Volume 34 Issue 6
Nov.  2014
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Mu Rongjun, Gao Mingyang, Liu Bin, Hu Ying. Research on characterized graphics matching method of autonomous optical navigation for lunar explorer[J]. Chinese Journal of Space Science, 2014, 34(6): 858-866. doi: 10.11728/cjss2014.06.858
Citation: Mu Rongjun, Gao Mingyang, Liu Bin, Hu Ying. Research on characterized graphics matching method of autonomous optical navigation for lunar explorer[J]. Chinese Journal of Space Science, 2014, 34(6): 858-866. doi: 10.11728/cjss2014.06.858

Research on characterized graphics matching method of autonomous optical navigation for lunar explorer

doi: 10.11728/cjss2014.06.858 cstr: 32142.14.cjss2014.06.858
  • Received Date: 2013-11-25
  • Rev Recd Date: 2014-07-24
  • Publish Date: 2014-11-15
  • This paper focuses on the characterized graphics matching based navigation method of precise landing on the moon, which mainly consists of feature point extracting, characterized graphics constructing and matching. Based on the property that the relative distance between two characterized points is unchanged, by establishing the connected rules of two characterized points, the method is adopted to overcome the problem of graphics matching with translation, rotation and scale changes. The algorithm is tested with multiple real lunar pictures, and the emulational experiment results approve the effectiveness of the method. Navigation method based on the characterized graphics matching is validated by designing a numerical simulation. The simulations reveal that the method that can gain the position and speed of vehicle with high precision in nearly real-time is an effective solution to lunar precise landing.

     

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