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Space Constrained Beamformer with a soft adaptation blocking system and non-coherent cancellation
  • Siow Yong Low, (WATRI)
  • Sven Nordholm, (WATRI)
  • Microphone arrays and array signal processing
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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.

©2006 Télécom Paris/TSI
Edition : Télécom Paris -- 2006