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A new direction finding algorithm was proposed to improve the performance of bearing estimation of passive sonar system. In this paper, the proposed algorithm has three steps, firstly conventional beam former (CBF) is used to detect the targets’ coarse bearings, secondly blind source separation (BSS) is used to make the interested beams of the targets become statistic independent, finally the proposed...
A new subspace projection approach was proposed to improve the robustness of adaptive beamforming and direction finding algorithms. The cost function of the signal subspace scaled multiple signal classification (SSMUSIQ is minimized on the uncertainty set of the presumed steering vector, the optimized solution is that the assumed steering vector can be modified as the weighed sum of the vectors orthogonally...
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