深空探测转移段光学成像测量自主导航及仿真验证技术

摘要

本文研究了深空探测转移段光学成像测量自主导航涉及的导航天体的选取与规划、导航天体图像的处理、观测方程与状态方程的建立、导航滤波算法的选取以及数学与半物理仿真验证等技术，提出了导航目标最优选取与成像序列规划、复杂导航星图提取与识别、无迹变换导航滤波以及光学成像测量自主导航仿真验证等方法。数学和半物理仿真试验验证结果表明，提出的方法有效提高了自主导航精度。%This paper investigates the autonomous optical navigation technologies for deep space transfer phase, in-cluding selection and planning of navigation target, processing of navigation image, establishment of observation and state equations, selection of navigation filter algorithm, along with numerical and semi-physical simulation method etc. The methods of optimal selection and image measurement planning of navigation target, processing and identifying of complex navigation image, navigation filter based on unscented transform, and simulation verification of autonomous optical naviga-tion are presented. The numerical and semi-physical simulation results demonstrate the valid improvement of autonomous navigation precision by using these methods.