СУЧАСНІ ПІДХОДИ ДО ВИЯВЛЕННЯ ШУМОВИПРОМІНЕННЯ ПІДВОДНИХ ЧОВНІВ У ПАСИВНОМУ РЕЖИМІ

Abstract

Today, aviation reconnaissance systems (ARS) based on aeronautical radioacoustic buoys (RB) are used mainly as single sensors of sonar information. At the same time, it is becoming clear that the processing of information from the systems of such RB provides much more information when searching for underwater objects. This can be a significant increase in the directional properties of the ARS and hence the range of detection of underwater objects; directed inspection of ARS of circular water area; control, if necessary, the accuracy of determining the azimuth of the target; determination, if necessary, the range of the target; support of ARS of several underwater objects at the same time, etc. The following possibilities of ARS were opened in connection with the presence of: free-flying aviation RB; rigid GPS position determination of each buoy; possibilities of processing on the information carrier from many sources; information management options.

The aim of the article is to study the possibilities of using information from the flat field of aviation RB to determine the parameters of the desired underwater source of noise radiation.

It is shown that the use of the capabilities of the RB system in ARS significantly expands the capabilities of ARS for the search for underwater objects. Buoys can receive direct signals from active tilting and towed sonar stations, which use powerful low-frequency cylindrical hydroacoustic piezoceramic sound transducers with resonant frequency control. The range of operating frequencies RGB-16V completely overlaps the entire frequency range of these converters, which solves the problem of integrated use of ships with variable depth antennas. After the detection of the submarine, it is advisable to list the main forces of the ship group, anti-submarine aircraft and the inclusion of onboard sonar to clarify the coordinates of the target and, if necessary, the use of weapons.

It is established that using the operating range of RGB-16B at a priori known position of buoys, it is possible in passive mode by subtracting the mutual correlation function between acoustic signals coming from 2 buoys to simultaneously determine the bearing on the radiation object, and in the presence of 3 buoys coordinates of the object of noise radiation.

It is shown that the use of mutual correlation function between acoustic signals in RB «Yatran» can be carried out in the whole range of operating frequencies RGB-16V, allows detecting other types of radiation, which significantly improves the tactical and technical characteristics of the product and gives a significant advantage.