Vol. 17, no. 4, 2025
РусскийEnglish
INFORMATION TECHNOLOGIES
Angular distribution of the spectral density of the noise emission hologram of an underwater vehicle
Venedikt M. Kuz'kin
Prokhorov Institute of General Physics of RAS, https://www.gpi.ru/
Moscow 119991, Russian Federation
Email: kumiov@yandex.ru
Sergey A. Pereselkov, Vladimir A. Bashkarev, Nikolay V. Ladykin
Voronezh State University, https://www.vsu.ru/
Voronezh 394006, Russian Federation
Email: pereselkov@yandex.ru, bashkarev.edu@yandex.ru, ladykin.edu@yandex.ru
Vladimir I. Grachev
Kotelnikov Institute of Radioengineering and Electronics of RAS, http://www.cplire.ru/
Moscow 125009, Russian Federation
Email: grachev@cplire.ru
Received July 30, 2025, peer-reviewed August 09, 2025, accepted August 11, 2025, published August 14, 2025
Abstract: The influence of the parameters of a moving underwater noise sound source and signal processing on the formation of the angular distribution of the spectral density (detection function) of a hologram in shallow waters is considered. The relationship between the maximum coordinate and the bandwidth of the detection function with the source parameters and signal processing parameters has been established. A method is proposed for determining the number of common-mode modes forming the interference structure of the noise field of the source. The concept of the quality factor of the detection function is introduced, which characterizes the degree of compression of the spectral density of a signal on a hologram. The results of numerical simulation are presented. The simulation results are compared with numerical estimates for determining the characteristics of the detection function.
Keywords: holographic processing, underwater acoustic signals, noise source, angular distribution of spectral density, detection function bandwidth, shallow-water, numerical modeling
UDC 004.052.34
RENSIT, 2025, 17(4):463-472e DOI: 10.17725/j.rensit.2025.17.463
Full-text electronic version of this article - web site http://en.rensit.ru/vypuski/article/689/17(4)463-472e.pdf