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FIR-median hybrid filters with excellent transient response in noisy conditions

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4 Author(s)
Wichman, R. ; Dept. of Electr. Eng., Tampere Univ. of Technol., Finland ; Astola, J.T. ; Heinonen, P.J. ; Neuvo, Y.A.

Two classes of FIR-median hybrid (FMH) filters are introduced, which are called in-place growing FIR-median hybrid (IPG-FMH) and recursive in-place growing FIR-median hybrid (RIPG-FMH) filters. This new extended family of filters exhibits a very small bias error in the vicinity of an edge, an yet provides good noise attenuation. It is shown that the IPG-FMH filters can be expressed as weighted FMH (WFMH) filters

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Acoustics, Speech and Signal Processing, IEEE Transactions on  (Volume:38 ,  Issue: 12 )