METHOD OF DETERMINING OPPOSING ARTILLERY LOCATION AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC G01S5/18 F41H13/00 

FIELD: weaponry and ammunition supplies.

SUBSTANCE: determination of opposing field and naval surface artillery location is performed by accurate recording the arrival time of a shot sound for each sound sensor (microphone), which must be at least three. Based on the known sound speed, the distance between the sensors and their locations, the location of the opposing artillery is calculated. The device for the opposing artillery location determination refers to the area of artillery reconnaissance and is intended for positioning each enemy shooting gun. The proposed device measures and digitizes signals from sound sensors and then converts them into Fourier transforms (amplitudes, phases and frequencies of the signal harmonics). The Fourier transforms of the shot sound are compared with the basic Fourier transforms of the sound of a shot of known gun types, with different levels of estimation reliability. The device also calculates the exact location of this enemy gun and conducts required statistical studies. The proposed device can also be used to determine the location of enemy snipers and underwater targets.

EFFECT: based on the identified basic Fourier transform, the type of gun, that fired the shot, is determined, with the corresponding estimation reliability.

2 cl, 17 dwg