摘要
针对火星探测中的捕获段和环火段,探讨火星探测光学自主导航半物理仿真系统的设计方案。研究了轨道动力学模型和光学相机导航系统图像处理方法,建立了自主导航算法模块的观测模型和输出显示模块的模型,利用Unscented卡尔曼滤波算法对探测器的位置和速度滤波。仿真结果表明,自主导航精度较高。
The design plan of semi-physical simulation system for optics-based autonomous navigation is discussed during the section of Mars capture and circum-Mars in Mars exploration.By research orbit dynamical model and image process technique,observation model of auto-navigate module and the model of display module are built,and the position and speed of the detector were calculated by using unscented Kalman filter.It is shown that the accuracy of autonomous navigation system through simulations is very high.
出处
《导航与控制》
2016年第2期9-12,28,共5页
Navigation and Control
关键词
火星探测
自主导航
光学探测
半物理仿真
Mars exploration
autonomous navigation
optics measurement
semi-physical simulation
