Results 31 to 40 of about 1,151,241 (199)
A Comparison of PCA and LBF Based Multireceiver SAS Imaging Algorithms
IEEE Access, 2023 Multireceiver synthetic aperture sonar (SAS) is a useful tool to provide high-resolution images. The most important step lies in developments of multireceiver synthetic aperture image formation processors, which uses the sonar echoed signal as the input.
Meng Wang, Pan Huang
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A Novel Imaging Algorithm for Wide-Beam Multiple-Receiver Synthetic Aperture Sonar Systems
Remote Sensing, 2023 In existing imaging algorithms for wide-beam multiple-receiver synthetic aperture sonar (SAS) systems, the double-square-root (DSR) range history of each receiver is generally converted into the sum of a single-square-root (SSR) range history and an ...
Jiafeng Zhang +4 more
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Adaptive phase estimation filter in long range synthetic aperture sonar interferometry
Electronics Letters, 2023 Synthetic aperture sonar (SAS) interferometry is a technique for very high resolution imaging and mapping of the seabed. In SAS interferometry, the seabed depth estimation performance is a function of the system, the geometry, the signal‐to‐noise ratio ...
Torstein Olsmo Sæbø, Roy Edgar Hansen
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A Multireceiver SAS Imaging Algorithm and Optimization
IEEE Access, 2023 Seafloor mapping is an important related to oceanic engineering. However, traditional side-scan, multibeam, and sub-bottom sonar systems generate acoustic images having insufficient resolution owing to their restricted array aperture.
Meng Wang, Pan Huang
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Joint Motion Error Estimation Algorithm for Multibeam Synthetic Aperture Sonar
IEEE Access, 2018 Multibeam echo sounder (MBES) and synthetic aperture sonar (SAS) are effective image sonar systems used as the major underwater observation instruments. The MBES system can get the fullscan detection without gaps, while the resolution on the along-track ...
Bo Wei, Haisen Li, Tian Zhou, Chao Xu
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Scanning Parametric Sediment Echosounder as Tool for Underwater Archaeological Prospection
Archaeological Prospection, EarlyView.ABSTRACT Underwater cultural heritage 3D prospection techniques, especially for remains that are partly buried in the ground, are only very rarely available and often can only be applied with considerable technical effort. To overcome this limitation, we evaluate a methodological adaption of widely used and available single channel parametric sediment ...
Dennis Wilken +5 more
wiley +1 more source
Compressive synthetic aperture sonar imaging with distributed optimization [PDF]
The Journal of the Acoustical Society of America, 2019 Synthetic aperture sonar (SAS) provides high-resolution acoustic imaging by processing coherently the backscattered acoustic signal recorded over consecutive pings. Traditionally, object detection and classification tasks rely on high-resolution seafloor mapping achieved with widebeam, broadband SAS systems.
Angeliki Xenaki, Yan Pailhas
openaire +3 more sources
Business Strategy and the Environment, EarlyView.ABSTRACT The inefficiencies of the global food system necessitate a shift towards a circular economy (CE) in food supply chains (FSCs). While research on CE in FSCs spans multiple disciplines, it often remains siloed within respective disciplinary boundaries, limiting its practical impact.
Lovish Raheja +2 more
wiley +1 more source
The Journal of Engineering, 2019 Based on the method of deriving two-dimensional wavenumber spectrum by using instantaneous Doppler wavenumber in bistatic synthetic aperture radar, the analytical solution of two-dimensional wavenumber spectrum of multi-receiver synthetic aperture sonar (
Jinbo Wang, Jinsong Tang, Zhen Tian
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Exploitation of SAS interferometric phase statistics for coherent change detection
Electronics Letters, 2023 Coherent change detection (CCD) takes advantage of the interferometric processing of synthetic aperture sonar (SAS) images and enables the detection of small scale changes to the scene between image pairs.
Emma Shouldice, Vincent Myers
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