Synthetic Aperture Sonar (SAS) without Navigation: Scan Registration as Basis for Near Field Synthetic Imaging in 2D [PDF]
Sensors, 2020 Sonars are essential for underwater sensing as they can operate over extended ranges and in poor visibility conditions. The use of a synthetic aperture is a popular approach to increase the resolution of sonars, i.e., the sonar with its N transducers is ...
Heiko Bülow, Andreas Birk
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Efficient Detection of Underwater Natural Gas Pipeline Leak Based on Synthetic Aperture Sonar (SAS) Systems [PDF]
Journal of Marine Science and Engineering, 2021 Natural gas is an important source of energy. Underwater gas pipeline leaks, on the other hand, have a serious impact on the marine environment; hence, the need for a reliable and preferably automated inspection method is essential.
Nahid Nadimi +2 more
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Three-Dimensional Imaging of Circular Array Synthetic Aperture Sonar for Unmanned Surface Vehicle [PDF]
Sensors, 2022 Synthetic aperture sonar (SAS) and interferometric synthetic aperture sonar (InSAS) have a range layover phenomenon during underwater observation, the AUV-mounted circular synthetic aperture sonar (CSAS) system, that insonifies targets using multiple ...
Sai Zeng, Wei Fan, Xuanmin Du
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Accelerated Deconvolved Imaging Algorithm for 2D Multibeam Synthetic Aperture Sonar [PDF]
Sensors, 2022 High-accuracy level underwater acoustical surveying plays an important role in ocean engineering applications, such as subaqueous tunnel construction, oil and gas exploration, and resources prospecting. This novel imaging method is eager to break through
Bo Wei, Chuanlin He, Siyu Xing, Yi Zheng
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A hybrid filtering method with no-reference quality assessment for synthetic aperture sonar images. [PDF]
PLoS ONESynthetic Aperture Sonar (SAS) imaging technology is wildly used in the underwater applications. In the work process of SAS imaging, filtering technologies are important for SAS imaging, which can suppress different noises to improve signal quality ...
Zhiping Xu +4 more
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Range-doppler algorithm of multireceiver synthetic aperture sonar using nonuniform signal. [PDF]
PLoS ONEWhen the structures of multireceiver synthetic aperture sonar (SAS) are applied, imaging techniques are not always able to acquire images with outstanding resolution in nonuniform situations.
Pan Huang +4 more
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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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An in-air synthetic aperture sonar dataset of target scattering in environments of varying complexity [PDF]
Scientific DataThis paper describes a synthetic aperture sonar (SAS) dataset collected in-air consisting of four types of targets in four environments of different complexity.
Thomas E. Blanford +6 more
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An Imaging Algorithm for Multireceiver Synthetic Aperture Sonar
Remote Sensing, 2019 For the multireceiver synthetic aperture sonar (SAS), the point target reference spectrum (PTRS) in the two-dimensional (2D) frequency domain and azimuth modulation in the range Doppler domain were first deduced based on a numerical evaluation method and
Xuebo Zhang, Cheng Tan, Wenwei Ying
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Real-Time, Deep Synthetic Aperture Sonar (SAS) Autofocus [PDF]
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021 Four pages. Accepted to IGARSS 2021.
Isaac D. Gerg, Vishal Monga
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