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- W2901031497 abstract "The development of a real-time 3-D underwater imaging system with a planar array is restricted by the huge hardware cost and computational burden associated with the large number of elements required. In this paper, a new design of low-complexity 3-D underwater imaging system is proposed, involving two key parts: a special sparse array with low hardware cost and an efficient beamforming with low computational burden. Especially, the simulated annealing algorithm is optimized based on distributed and parallel subarray (DPS) beamforming and results in fewer active elements than existing methods. To improve the computational efficiency especially for sparse arrays, an optimized DPS beamforming is presented with the pruning fast Fourier transform technology. To test the validity of the design, a real system based on the proposed methods was devised and employed in the lake and sea trials. The experiment results demonstrate that the low-complexity 3-D underwater imaging system can provide a satisfactory imaging quality." @default.
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- W2901031497 date "2019-10-01" @default.
- W2901031497 modified "2023-10-18" @default.
- W2901031497 title "Design of Low-Complexity 3-D Underwater Imaging System With Sparse Planar Arrays" @default.
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- W2901031497 doi "https://doi.org/10.1109/tim.2018.2879169" @default.
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