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Content Provider | IET Digital Library |
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Author | Mei, Jidan Pei, Yuqing Zakharov, Yuriy Sun, Dajun Ma, Chao |
Abstract | Underwater acoustic imaging (UAI) can be utilised to observe the spatial distribution of a near-field sound source. The image quality depends on the resolution and sidelobe level of conventional beamforming. The linear array-based UAI can be considered as deconvolution of a two-dimensional point spread function shift-variant model. The performance of UAI can be improved via innovative deconvolution algorithms. In this study, a non-uniform spatial resampling Richardson–Lucy (RL) fast algorithm is designed in which the amount of samples is determined by the power of the UAI output. This allows for a significant decrease in the number of samples compared to the traditional RL algorithm with similar positioning accuracy. Computer simulations and sea trials are performed to validate the effectiveness and feasibility of the proposed method. |
Starting Page | 1697 |
Ending Page | 1707 |
Page Count | 11 |
ISSN | 17518784 |
Volume Number | 14 |
e-ISSN | 17518792 |
Issue Number | Issue 11, Nov (2020) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-rsn/14/11 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2020.0175 |
Journal | IET Radar, Sonar & Navigation |
Publisher Date | 2020-07-30 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Acoustic Imaging Acoustic Signal Processing Array Signal Processing Computer Vision And Image Processing Technique Conventional Beamforming Deconvolution Image Quality Image Resolution Image Restoration Innovative Deconvolution Algorithm Iterative Method Linear Array-based UAI Near-field Sound Source Nonuniform Spatial Resampling Richardson–Lucy Fast Algorithm Optical Transfer Function Optical, Image And Video Signal Processing RL Deconvolution Sidelobe Level Signal Processing And Detection Spatial Distribution Traditional RL Algorithm Two-dimensional Point Spread Function Shift-variant Model UAI Output Underwater Acoustic Imaging Underwater Sound |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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