RADIO FREQUENCY COMPLEXES FOR DETECTION OF SMALL DIMENSIONAL AIRCRAFT

Abstract

The task of detecting small unmanned aerial vehicles is complicated by their small size, the use of composite materials of the hulls that do not reflect the radio waves of the radar and the minimum thermal radiation. The greatest vulnerability is due to the presence of sources of electromagnetic radiation for the transmission of real-time commands and the exchange of intelligence information, including signals for the transmission of real-time television images. The aim of the work is to develop technical parameters of radio complexes for monitoring electromagnetic radiation of small unmanned aerial vehicles in the radio frequency, infrared and optical ranges and direction finding of sources of these radiation in order to intercept, suppress or destroy them. The paper analyzes the methods of detecting small unmanned aerial vehicles in the radio frequency range. The conclusion on expediency of use of search methods on frequency and searchless methods of detection on a direction is made. The structure of the radio frequency detection complex of small unmanned aerial vehicles is proposed. The layout of one channel with search of signals on frequency and algorithms of primary processing of radio signals, display of results of processing of signals in the form of the spectrogram and input of these results in the computer is developed