Quantitative atmospheric phase jitter simulating research of optic field imaging

Abstract

The laser field imaging telescope emits laser coherent field to detect space targets. When laser passes through the atmospheric transmission path, the laser is inevitably affected by the phase jitter of atmosphere. Atmospheric phase jitter varies randomly and it is difficult to be quantitatively simulated. In order to quantitatively research the influence of atmospheric phase jitter on imaging quality, a quantitative simulation method of atmospheric phase jitter based on the change of beam frequency difference was proposed. A set of atmospheric turbulence phase jitter quantitative numerical simulation experimental platform was constructed. The effect of different phase jitter on the imaging quality of laser field imaging was quantitatively studied. The results show that the larger the atmospheric phase jitter is, the more degraded the image quality is. We suggest that the atmospheric phase jitter should be suppressed in the signal reconstruction. The quantitative simulation method of atmospheric phase jitter provides an effective technique for studying the image quality of light field imaging.