V. I. Karpukhin – Dr.Sc. (Eng.), Professor, Honored Scientist, Chief Research Scientist, Research Exploring Institute of Radio-electronic Fight of Military Educational-Research Centre of Air Force «Air Force Academy named after professor N.E. Zhukovsky and Y.A. Gagarin» (Voronezh)

A. A. Volkov – Ph.D. (Eng.), Lecturer, Military Educational-Research Centre of Air Force «Air Force Academy named after professor N.E. Zhukovsky and Y.A. Gagarin» (Voronezh)

E-mail: volkov_aa@autorambler.ru

The expression has been obtained and calculations have been made for the probability of detecting the trajectory signal in the processing channels of the device that implements the autofocusing algorithm by the method of formation a dynamic phase portrait under noise interference conditions. The boundary of the effective operation of the autofocusing algorithm with respect to the energy signal-interference ratio has been determined.

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