Open AccessComparison of Passive Sonar Narrowband Detection and Wideband Detection Performance
Author(s) -
Tingting Yang,
Qian Ma,
Tuo Chen
Publication year - 2021
Publication title -
journal of innovation and social science research
Language(s) - English
Resource type - Journals
ISSN - 2591-6890
DOI - 10.53469/jissr.2021.08(08).08
Subject(s) - narrowband , wideband , sonar , underwater , detection theory , acoustics , noise (video) , computer science , energy (signal processing) , sonar signal processing , interference (communication) , signal to noise ratio (imaging) , electronic engineering , telecommunications , signal processing , engineering , physics , detector , artificial intelligence , geography , channel (broadcasting) , quantum mechanics , image (mathematics) , radar , archaeology
Conventional passive sonar uses wideband beam energy for target detection. In the case of low signal-to-noise ratio and strong target interference, the performance of wideband energy detection is rapidly degraded. In view of the relatively stable line spectrum of the radiated noise of underwater targets, the performance of narrowband detection and wideband detection is considered. In stable line spectrum underwater target detection, narrowband detection has performance advantages over wideband detection. However, its actual performance has disadvantages such as sensitivity to noise frequency bands. In this paper, based on the sonar equation, the theoretical methods of wideband detection and narrowband detection are analyzed and the main factors affecting detection performance are given. Simulation and sea trial data processing results verify the effectiveness of the method.