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Robust adaptive beamforming with enhanced noise suppression
Robust adaptive beamforming with enhanced noise suppression
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机译:具有增强的噪声抑制能力的强大自适应波束成形
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摘要
A novel adaptive beamforming technique with enhanced noise suppression capability. The technique incorporates the sound-source presence probability into an adaptive blocking matrix. In one embodiment the sound-source presence probability is estimated based on the instantaneous direction of arrival of the input signals and voice activity detection. The technique guarantees robustness to steering vector errors without imposing ad hoc constraints on the adaptive filter coefficients. It can provide good suppression performance for both directional interference signals as well as isotropic ambient noise.
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