摘要
为了提高大气层外飞行器脱靶量的光学测量精度,提出了一种基于多测站同帧画幅数据的脱靶量处理算法。首先给出了光学测量脱靶量的基本原理;其次分析了各种角度误差对大气层外飞行器脱靶量测量的影响;然后建立了基于多测站同帧画幅数据的节省参数算法,并进行了脱靶量精度分析;最后给出了典型情况下的仿真结果。仿真结果表明:对大气层外飞行器脱靶量进行光学测量,必须修正CCD曝光时延误差和焦距误差,通过充分利用多测站冗余同帧画幅数据可以提高脱靶量测量精度。
To improve the optica! measurement accuracy of exo-atmosphere spacecraft＇s miss distance, a processing algorithm based on the same frame film data of multi-devices was presented. Firstly, the basic principle of miss distance measurement by optical method was put forward. Secondly, the influence on exo-atmosphere spacecraft＇s miss distance by the angle measurement data errors was analyzed. Then, the sparse parameter algorithm based on the same frame film data of multi-devices was set up, and the precision of miss distance influenced by measurement errors was analyzed. Finally, the simulation results in typical cases were supplied. The simulation results show that the CCD exposure time error and the focal length error must be corrected in the optical measurement of exo-atmosphere spacecraft＇s miss distance, and the precision of miss distance can be improved by using the redundant same frame film data of multi-devices.
出处
《光电工程》
CAS
CSCD
北大核心
2015年第7期89-94,共6页
Opto-Electronic Engineering
关键词
脱靶量
光学测量
同帧画幅
miss distance
optical measurement
same frame film
