Method for radar detection of small low-flying objects, particularly drones, and system for radar detection of small low-flying objects, particularly drones

Abstract

A method for radiolocation detection of small low-flying objects, in particular drones, is characterized in that broadband, long-lasting radio pulses of a complex form are formed, the frequency spectra of which contain many components, simultaneously creating signals reflected with Doppler frequency shifts from many resonant areas of the same scattering volume of the aircraft's acoustic field, the energy of the Doppler signals is accumulated by integrating the summary Doppler signal over the radio pulse duration interval, and after the summary signal exceeds the threshold value, an impulse target detection marker is formed, the distance to the target is determined based on the marker delay relative to the initial moment of emission of the radio pulse, taking into account the time allocated for integration,Doppler frequency shifts of opposite signs for spectral components relative to their reference frequency are measured, and the target's radial velocity is determined. The application also covers a system for the radar detection of small, low-flying objects, particularly drones, shown in the drawing.