Results 21 to 30 of about 1,151,241 (199)
An omega‐k algorithm for multireceiver synthetic aperture sonar
Electronics Letters, 2023 In this Letter, the authors present a novel imaging algorithm for multireceiver synthetic aperture sonar (SAS). The Loffeld's bistatic formula (LBF) including quasi‐monostatic (QM) and multireceiver deformation (MD) phases is first reformulated into ...
Xuebo Zhang, Peixuan Yang, Haixin Sun
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Effect of incorrect sound velocity on synthetic aperture sonar resolution [PDF]
MATEC Web of Conferences, 2019 Synthetic aperture sonar (SAS) is an imaging technique to produce centimeter resolution over hundreds-of-meter range on the sea floor, by constructing a virtual aperture whose length automatically adjusts itself for a given focusing range.
Ji Xia, Zhou Lisheng, Cong Weihua
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Review of interferometric synthetic aperture sonar interferometric phase filtering methods
Advances in Mechanical Engineering, 2023 Interferometric synthetic aperture sonar (InSAS) is a novel three dimensional underwater mapping system, which is widely used in various fields. Interferometric phase filtering is a crucial process in InSAS signal processing.
Pan Huang +3 more
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A study on a synthetic aperture sonar [PDF]
, 1995 Aperture synthesis, as its name implies, synthesises an aperture by storing successive echoes obtained from a moving platform and by processing the results as if they had been obtained from a multi-element array enables a high azimuth resolution to be ...
Zaiqing Meng (7204322)
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On synthetic aperture sonar [PDF]
The Journal of the Acoustical Society of America, 1988 Synthetic aperture technology is used in airborne radar or on satellites like SEASAT to obtain high-resolution pictures of the Earth's surface. On the other hand, in the field of underwater acoustics, the effectiveness of synthetic aperture side-looking sonar has long been predicted.
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Frequency‐domain multireceiver synthetic aperture sonar imagery with Chebyshev polynomials
Electronics Letters, 2022 Based on Chebyshev polynomials, the two‐way slant range is first approximated by the fourth‐order polynomial approximation. With the series reversion method, the point target reference spectrum (PTRS) which is further used for the development of imaging ...
Xuebo Zhang, Peixuan Yang, Haixin Sun
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A Novel Sub-Bottom Profiler and Signal Processor
Sensors, 2019 In this paper, we introduce a novel sub-bottom profiler, making good use of the Mills cross configuration of multibeam sonar and synthetic aperture techniques of the synthetic aperture sonar system.
Cheng Tan +3 more
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The Topology of Circular Synthetic Aperture Sonar Targets
CoRR, 2022 This report presents a connection between the physical acoustics of an object and the topology of the space of echoes resulting from a circular synthetic aperture sonar (CSAS) collection of that object. A simple theoretical model is developed that yields a precise, yet qualitative, description of the space of echoes. This theoretical model is validated
Michael Robinson 0001, Zander Memon
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Histogram Layers for Synthetic Aperture Sonar Imagery
2022 21st IEEE International Conference on Machine Learning and Applications (ICMLA), 2022 7 pages, 9 Figures, Accepted to IEEE International Conference on Machine Learning and Applications (ICMLA ...
Joshua Peeples +3 more
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Synthetic aperture sonar imaging using compressive sensing and an ultrasound transducer array [PDF]
, 2013 Includes bibliographical references.Compressive sensing (CS) also known as compressive sampling is a technique used to reconstruct or recover the full-length of a signal with only a few non-adaptive measurements.
Jideani, Josiah Chimnanu
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