Underwater wideband coherent signals DOA estimation using sparse representation and deconvolution
Jingjing Fan,
Quan Tao,
Zhiwen Qian
et al.
Abstract:The beamforming-based direction of arrival (DOA) estimation method is widely used because of its advantages of robustness, which requires large array aperture to ensure high spatial resolution. The deconvolution beam-forming method has high-resolution DOA estimation without increasing the array aperture. However, it is based on the assumption of incoherent narrowband signals. When the signals are coherent, the high cross-term sidelobes result in large estimation errors. In this paper, a new sparse deconvolutio… Show more
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