Ignatyev A. Acousto-optic filters of image with increasing selectivity on basis of the second order of Bragg diffraction for remote aerospace investigation of the Earth

Object of research - acousto-optic filtration of images at interaction of light and ultrasonic waves under double corner Bragg. The purpose of dissertational job is the substantiation of principles of creation acousto-optic filters of images for systems of remote space sounding the Earth, with use of making second orders Bragg diffractions, at interaction of light with a ultrasonic wave under the double corner Bragg, possessing the raised spectral resolution. At research of properties of the absent-minded light radiation on a ultrasonic wave the mathematical device of the theory of distribution of electromagnetic waves in periodic structures was used, methods processing data of physical experiment are used. Theoretical and practical results are: algorithm calculation acousto-optic filters of the image which can be used at designing acousto-optic the filters which are a part of videospectrometers; the architecture of construction acousto-optic filters on the basis of components of the second order Braggdiffractions, can be used at designing acousto-optic filters of the image; recommendations on use in schemes of a balancing filtration acousto-optic filters of the image, provide increase of contrast of the image in videospectrometers as a whole. Novelty of job is that: in first the opportunity of increase of spectral selectivity acousto-optic filters is investigated at use of interaction of light with ultrasonic a wave under double corner Bragg; for the first time the comparative estimation of an angular field of vision and spatial resolution is spent; has received the further development a method of a balancing spectral filtration, due to use reconstructed acousto-optic filters for increase of contrast of images. Results of dissertational job are introduced: by development of program products of thematic processing the information with KА "Monitoring", "Anticris"; "Cedar" and "Sapsan", performed a scientific research institute of radiosystems, Zhitomir. Results help the decision of some the applied problemsconnected with use of systems DZ.