Synthetic Aperture Dynamic Imaging Studies

The article had been mainly focus on the study of optical Synthetic-Aperture's basic theory and principle of imaging,and had been analyzed many key technologies of dynamic tracking imaging.Spatial resolution was the important technical indicators to evaluate the observation capabilities of space optical remote sensor.In order to improve the spatial resolution,it had been bound to increase the diameter of space optical systems.However, the system diameter's increase had been limited by the material,weight,cost and the size of a payload body etc.Synthetic Aperture optical imaging system was the good way to solve these problems.This article had been introduced the combined application of Synthetic Aperture and precise tracking turntable in space to attain a smooth tracking to moving targets,and ensuring a higher image quality for good target recognition.Main contents were as follows:1.Optic Synthetic-aperture's basic theory was analyzed.The basic principles on Optic Synthetic-aperture had been firstly introduced,Then optical interference,the characteristics of Synthetic Aperture imaging,and imaging quality evaluating parameters such as PSF and MTF had been introduced.2.The imaging simulation of Optic synthetic aperture system.This part had been given a detailed study to the array of the sub-apertures.It had been covered the structure of several typical Synthetic Aperture,and compared their imaging evaluation parameters based on computer simulation to each other.The Golay3 had been weightily introduced and the imaging parameters in space exploration application had been analyzed.3.Models of the space exploration system had been established.By the anticipated needs of detection parameters in space exploration,Optic Synthetic-aperture systems and photoelectric tracking turntable had been combined consideration4 Analysis impact on imaging quality from system random vibration when tracking targetIn synthetic Aperture high graphics imaging,the key question was to get an effective interference fringes from its all sub-Aperture,and then restore the image.In this chapter,we had been analyzed and introduced the imaging wave front impact on the interference fringes,and random jitter's impact on main petal of imaging interference fringes.