A hybrid descent method for optimal sigmoid filter design

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A hybrid descent method for optimal sigmoid filter design

In this letter, a hybrid descent method is used to determine a set of filter parameters for a sigmoid filter which attempts to work under various SNR conditions. It overcomes the limitations of the current sigmoid filters that performs effectively only at a single SNR. Results show that significant...

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Bibliographic Details
Main Authors:	Chan, Kit, Nordholm, Sven, Low, S., Yong, Pei, Yiu, Ka Fai
Format:	Journal Article
Published:	IEEE Signal Processing Society 2014
Subjects:	sigmoid function noise suppression speech enhancement Hybrid optimization method various SNR conditions
Online Access:	http://hdl.handle.net/20.500.11937/41143

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