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Space Constrained Beamformer with a soft adaptation blocking system and non-coherent cancellation
- Author(s)
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- Siow Yong Low, (WATRI)
- Sven Nordholm, (WATRI)
- Topics
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- Microphone arrays and array signal processing
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Abstract
This paper introduces a new regulator to control the adaptation of the adaptive algorithm for use in a blocking system. Here, the blocking system is part of the previously proposed scheme, which cancels target signal for the estimation of noise spectrum. Contrary to the use of a hard approach to control the adaptation, a soft approach is proposed. As such, the rigidity of the adaptation is greatly reduced and the adaptation can be carried out even during non-target signal period. Results show that the proposed soft regulator achieves better target signal cancellation, which in turn leads to greater noise suppression capability.
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