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Total number
Full text
Number of local repositories
Full text
0225U004573,
(0124U004472)
,
Development of a mobile passive acoustic direction finder based on broadband infrasound sensors
Створення пасивного акустичного пеленгатора для виявлення малорозмірних цілей.
Tatarchuk Dmytro D., Доктор технічних наук
11-12-2025
National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute»
Development of a tactical mobile passive location complex in the infrasound range of 0.1...25 Hz for detecting, identifying and determining the location or movement parameters of small-sized targets at a distance of up to 35 km with an accuracy of no worse than 20 m, such as unmanned aerial vehicles, drones, rotorcraft and threats from rocket launches, artillery salvos, cases of acoustic weapon use.
As a result of this stage's completion, tactical and technical requirements for a passive acoustic direction finder in the infrasound range were developed. Methods for ensuring the reliability, survivability, and safety of the system's equipment in the presence of interference, atmospheric phenomena, obstacles to acoustic wave propagation, and for managing data flows during information exchange were analyzed and defined. The influence of the acoustic background on the reliability of the acoustic system was analyzed. It was shown that, to reliably detect small targets, it is necessary to calibrate the sensor system taking into account the sound background of the location of the system's use. The influence of other environmental factors on the operation of the mobile passive acoustic direction finder and possible technical options for protecting the acoustic direction finder from their effects were analyzed. The thermal resistance of the medium in the channel and the heat transfer coefficients with the surface were determined. The influence of the design parameters of the housing on the temperature of the system's components was studied. Mathematical modeling methods were used to verify the feasibility of installing the system onboard an unmanned aerial vehicle. It was shown that using two or three unmanned aerial vehicles, the baseline can be increased to 1 km. The potential accuracy of these methods fully satisfies the requirements for angular coordinate measurement accuracy, but the accuracy of coordinate measurement for each receiver decreases. Technical solutions for the hardware and software implementation of the equipment have been developed. Technological approaches have been developed for the fabrication of acoustic sensors using anisotropic etching of silicon on epitaxial substrates. Block diagrams of the main units of the passive acoustic direction finder system for the infrasound range have been developed. Algorithms for digital processing of acoustic sign
Anatolii I. Kuzmychiev
Prokopenko Yurii V.
Oleksandr V. Bohdan
Smyrnov Oleksandr M.
Dzuiba Yevhenii D.
2025-12-11
Updated: 2025-12-12
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