The research micro-vibration detecting optical imaging system verification

Abstract

In order to reduce the influence of vibration on the imaging quality of space cameras, the ground simulation micro-vibration imaging detection optics is carried out, which is convenient for the off-line image recovery technology of measurement information. In this paper, the collimator system is selected as the optical system to simulate the characteristic target from infinity. The LIGHTTOOLS software is used to simulate the optical path. The system is studied through four experiments, namely camera excitation jitter test, target motion simulation optical axis jitter test, The wave-front distortion measurement test and the defocus measurement test analyze and compensate the optical error of the space camera through off-line image restoration. The test results show that when the camera is not excited, the camera outputs a clear image through the collimator system, which meets the requirements of the micro-vibration imaging test. In the micro-vibration imaging test, when the wave-front aberration reaches 0.21λ and 0.23λ, the imaging of the collimator system can meet the processing requirements of the recovery software. The result proves that the collimator system can be effectively applied to micro-vibration imaging. The detection system has the ability to successfully verify micro-vibration imaging detection tests.