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行星着陆自主导航地形特征综合优化方法

Translated title of the contribution: Integrated Optimization of Navigation Features for Planetary Landing
  • Ministry of Industry and Information Technology
  • Beijing Institute of Technology
  • CAS - Beijing Institute of Control Engineering

Research output: Contribution to journalArticlepeer-review

Abstract

Aiming at the optimization of optical navigation scheme for planetary landing, this paper proposes an integrated optimization method based on observability. Firstly, the measurement equations of different geometric characteristics are established by using the image information of landmarks. Based on the observability matrix and Fisher information matrix, the observability and the lower limit of estimation error of navigation system are analyzed, and the relationship between the location and quantity of characteristics and the performance of navigation system is revealed. Then, the observability and the lower limit of estimation error of navigation system are used as the evaluation indexes respectively. At last, the influence of different feature points, lines and curves on the performance of navigation scheme is analyzed, and the relevant conclusions are verified by simulation.

Translated title of the contributionIntegrated Optimization of Navigation Features for Planetary Landing
Original languageChinese (Traditional)
Pages (from-to)192-201
Number of pages10
JournalYuhang Xuebao/Journal of Astronautics
Volume42
Issue number2
DOIs
Publication statusPublished - 28 Feb 2021

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