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Method a single-site definition the direction of the laser source heterodyne photodetector

Keywords:

A.Yu. Koziratsky – Dr. Sc. (Eng.), Professor, Head of Department of Radio Engineering and Antenna-Feeder Devices, MESC «Zhukovsky–Gagarin Air Force Academy» (Voronezh). E-mail: sashfish@bk.ru A.I. Grevtsev – Ph. D. (Eng.), Lecturer, Department of Radio Engineering and Antenna-Feeder Devices, MESC «Zhukovsky–Gagarin Air Force Academy» (Voronezh). E-mail: grevets1@rambler.ru M.M. Frolov – Post-graduate Student, MESC «Zhukovsky–Gagarin Air Force Academy» (Voronezh) A.A. Koziratsky – Student, Voronezh State University


In order to increase the accuracy of determining the angular coordinates of the light source Nika laser radiation the proposed method based on the use as a detector of matrix photodetector on the surface of which fall simultaneously two optical flow: from the radiation source and from the reference oscillator. The result of mixing two streams on the surface of the matrix photodetector is formed of interference patterns, which, with the involvement of methods of digital image processing provides accurate values of angular coordinates of optical radiation source. The calculations showed that the proposed method provides for obtaining the angular coordinates of the source with required accuracy, but it is very sensitive to distortions of the phase front is taken radiation.
References:

 

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