Autonomous optical navigation of Mars probe aided by one-way Doppler measurements in capture stage  

作　　者：ZHANG Zhibin JI Haibo YANG Jie 

机构地区：[1]School of Information and Technology,University of Science and Technology of China,Hefei 230026,China [2]State Key Laboratory of Astronautics Dynamics,Xi’an Satellite Control Center,Xi’an 710043,China

出　　处：《Journal of Systems Engineering and Electronics》2020年第3期602-611,共10页系统工程与电子技术（英文版）

基　　金：the National Natural Science Foundation of China(61273090).

摘　　要：The optical navigation errors of Mars probe in the capture stage depend closely on which targets are selected to be observed in the Mars system.As for this problem,an integrated navigation scheme is proposed wherein the optical observation is aided by one-way Doppler measurements.The errors are then analyzed respectively for the optical observation and one-way Doppler measurements.The real-time calculating scheme which exploits the extended Kalman filter(EKF)framework is designed for the integrated navigation.The simulation tests demonstrate that the errors of optical navigation,which select the Mars moon as the observation target,are relatively smaller than those in the Mars-orientation optical navigation case.On one hand,the integrated navigation errors do not depend on the selecting pattern of optical observation targets.On the other hand,the integrated navigation errors are significantly reduced as compared with those in the optical-alone autonomous navigation mode.

关 键 词：Mars probe autonomous navigation one-way Doppler measurement optical observation capture stage 

分 类 号：V476.4[航空宇航科学与技术—飞行器设计]