Title :
FIR-median hybrid filters with excellent transient response in noisy conditions
Author :
Wichman, Risto ; Astola, Jaakko T. ; Heinonen, Pekka J. ; Neuvo, Yrjö A.
Author_Institution :
Dept. of Electr. Eng., Tampere Univ. of Technol., Finland
fDate :
12/1/1990 12:00:00 AM
Abstract :
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
Keywords :
digital filters; filtering and prediction theory; transient response; FIR-median hybrid filters; bias error; filtering; in-place growing filter; noise attenuation; noisy conditions; recursive in-place growing filter; transient response; weighted filters; Adaptive filters; Attenuation; Filtering; Low pass filters; Nonlinear filters; Samarium; Smoothing methods; Statistics; Switches; Transient response;
Journal_Title :
Acoustics, Speech and Signal Processing, IEEE Transactions on
