Research Of Visible And Synthetic Aperture Radar Integrated Imaging System

Integration of multiband imaging system has always been one of the hotspots of the optical design,and it develops rapidly especially in recent years.At present,the main existence form of compound includes visible light,infrared integrated system,infrared microwave integrated system and laser communication and microwave communication integrated system of these three categories.Integrated systems can be used in military reconnaissance,disaster warning and composite communications and many other fields,which attracts extensive attention worldwide.The main content of this paper is visible light and synthetic aperture radar integrated imaging system.Optical remote sensing imaging and synthetic aperture radar imaging are the main ground investigation techniques currently.Compared with the single mode investigation techniques,the integrated system not only has been greatly improved in the ability to adapt to the weather and the environment,but also can achieve two modes of detailed investigation and census to make the images information acquiring more accurate and reduce misjudgment.The core content of this paper is the integration of visible light optical system with the radar antenna system and the study of visible light,microwave separation device.In the aspect of system integration fusion,the characteristics of the two systems are stated,three fusion modes are put forward,and the advantages and disadvantages and the degree of which can be achieved are analyzed,finally two way of fusion is chose,and the specific design scheme is given,then the imaging quality through software simulation is evaluated.In the study of separation devices,several kinds of candidates of visible light and microwave separation devices are proposed by researching the knowledges of microwave penetration,reflecting material and optical thin film and so on.After weighing the separation effect and processing difficulty level of each option,a program which is more mature in technically and can meet the requirements is selected,then the actual processing is carried out,and its true separation effect is verified through the experiment.In the end,the existing problems in the integrated system are summarized,the feasibility and the need for improvement of this system are analyzed,and the prospect to the development of integrated system is made.