微振动成像检测光学验证系统研究  

Research on Micro-vibration Detecting Optical Imaging System Verification

作　　者：王丹艺[1] 蒋山平[1] 张鹏嵩[1] 张博伦[1] 杨林华[1] WANG Danyi;JIANG Shanping;ZHANG Pengsong;ZHANG Bolun;YANG Linhua(Beijing Institute of Spacecraft Environment Engineering,Beijing 100094)

机构地区：[1]北京卫星环境工程研究所

出　　处：《空间科学学报》2019年第6期838-846,共9页Chinese Journal of Space Science

摘　　要：针对高分辨率空间相机的系统特性,选用平行光管系统作为光学系统,模拟来自无穷远的特征目标.运用LIGHTTOOLS软件对光路进行模拟,确定较优的光学结构.主要通过4种试验进行研究,即相机激振抖动试验,靶标运动模拟光轴抖动试验,波前畸变测量试验,离焦测量试验.通过离线图像复原对空间相机的光学误差进行分析及补偿.试验结果表明,在未给相机施加激振的情况下,经过平行光管系统输出,相机成像出的40LP·mm-1(LP表示线对)及20LP·mm-1清晰,满足微振动成像检测试验要求.在微振动成像检测试验中,波前像差达到0.21λ(RMS<λ/4),1.28λ(PV)以及0.23A (RMS<λ/4),1.34λ(PV)时,该平行光管系统成像均可满足复原软件处理需求,可以有效应用于微振动成像检测系统并具有验证微振动成像检测试验的能力.According to the system characteristics of high-resolution space camera,the parallel optical tube system is selected as the optical system to simulate the feature target from infinity.The LIGHTTOOLS software is used to simulate the optical path to determine the optimal optical structure.The research is mainly carried out through four experiments,namely camera excitation jitter test,target motion simulation optical axis jitter test,wave front distortion measurement test and defocus measurement test.The optical error of space camera is analyzed and compensated by offline image restoration.The test results show that the 40 LP·mm-1(LP,Line Pair) and 20 LP·mm-1imaged by the camera are clear through the output of the collimator without applying excitation to the camera,which meets the requirements of micro-vibration imaging test.In the micro-vibration imaging test,the collimator has a wavefront aberration of 0.21λ(RMS<λ/4),1.28 A(PV),and 0.23λ(RMS<λ/4),1.34λ(PV).The imaging of the system can meet the processing requirements of the recovery software.The collimator optical system can be effectively applied to the microvibration imaging detection system and has the ability to successfully verify the micro-vibration imaging detection test.

关 键 词：平行光管 微振动成像检测 光学验证系统 

分 类 号：V11[航空宇航科学与技术—人机与环境工程]