ACOUSTIC SOUNDER OF PULSED SOUND SOURCES Russian patent published in 2014 - IPC G01S3/80 

FIELD: physics.

SUBSTANCE: invention can be used to measure a sound source (SS) distance from an acoustic locator, its corrected sound-ranging angle and topographic coordinates (TC) of this SS. It comprises left (LLG) and right linear groups (RLG) of sound locators (SL); each group mentioned above consists of 3 SLs. Centres of these LGs are frontally arranged at approximately several hundred metres from each other and at approximately several kilometres from a troop confrontation line; there are also provided three signal processing channels (SPC), a computer (C), a selector pulse formation chain (SPFC) and a SL LG directional characteristics control system enabling signal processing in the SPC at certain moments only as determined by programs installed in 2 of its microconvertors that improves a noise immunity of the acoustic locator and provides obtaining the TCs of the SS found in a sector of reconnaissance. The first SPC and a frequency channel consist of a signal extractor (SE), a voltage summator (VS), an amplitude detector (AD), an analogue-to-digital convertor, and a series register connected to the computer. The second SPC comprises an SE, a VS, an AD, a time measurement system (TMS) and 2 registers connected to the computer. The TMS measures a pulse count (at a repetition cycle of 1 ms) to the moment of pulse acoustic signal receipt by the RLG of the SL, as well as to the LLG of the SL; the SPFC comprises series connected frontal SL, a Schmitt trigger and a trigger circuit. The frequency f₁ channel processes an electrical signal of the frequency f₁, while first and second ones - of the frequency f₀. Processing the signals in the first SPC and the frequency f₁ channel results in computed calculation of distance to the SS, while processing the signals in the second SPC results in computed measurement of the corrected sound-ranging angle, the TCs of the SS.

EFFECT: improved noise immunity of the acoustic locator.

15 dwg, 26 app