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During the past decades, inversion of ocean environment parameters by ocean ambient noise has gradually made great progress. It has been suggested that the time-domain Green's function between two receivers can possibly be extracted by using ocean ambient noise. The correct location of each element of an hydrophone array can be calibrated according to information about Green's function. With the beam-forming...
We propose a segment focusing compressed sensing algorithm which is high-resolution, low complexity and uses inherent sparsity in the scene of sonar imaging. We demonstrate on simulation and through poor experimental data that Fast Fourier Transform (FFT) beamforming and the proposed algorithm can distinguish the targets generated by the direct path target scattering echo signal. But FFT beamforming...
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