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- W2598541025 abstract "In this work, we use compressive sensing (CS) to obtain direction of arrival (DOA) in time-domain. In underwater acoustics, sound waves via different propagation paths arrive at hydrophone with different arrival angles. To calculate the DOAs, beamforming can be used with array measurement. For an achievement of high-resolution beamforming results in time-domain, CS is adopted, which provides a solution for underdetermined linear problem by promoting sparsity of the solution. The first step for this is to formulate a linear system for estimating a channel impulse response (CIR), which allows us to use CS to get the high-resolution CIR. The CIRs according to sensors in array show an acoustic structure related to DOAs. The delay-sum beamforming is applied to the CIRs, and then DOAs can be observed according to their travel times. The CS time-domain is applied to SAVEX15 data and its results are compared to conventional time-domain beamforming results." @default.
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- W2598541025 date "2017-01-01" @default.
- W2598541025 modified "2023-09-23" @default.
- W2598541025 title "Compressive time-domain beamforming" @default.
- W2598541025 cites W2063215935 @default.
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- W2598541025 doi "https://doi.org/10.1109/ut.2017.7890292" @default.
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