MVDR Beamformer with Subband Peak Energy Detector for Detection and Tracking of Fast Moving Underwater Targets Using Towed Array Sonars
Detection and tracking of fast moving underwater targets like torpedoes within cluttered acoustic environment is a challenging task in anti-submarine warfare. Adaptive Minimum Variance Distortion less Response (MVDR) beamformer with Subband Peak Energy Detector (SPED) offers narrow beam width and low side lobe levels, which is an essential requirement for torpedo detection and tracking. A novel algorithm for torpedo detection and tracking using MVDR with SPED for towed array sonar is presented in this paper. Measures to make the adaptive beamformer more robust to any array perturbations are discussed. These algorithms are tested and validated using simulated and towed array experimental data. Hardware implementation of a real-time broad band adaptive MVDR beamformer with SPED for uniform linear array is presented. Various computational aspects of real time implementation are looked at and an efficient and parallel implementation scheme is proposed.
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Document Type: Research Article
Publication date: January 1, 2019
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- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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