Theory and performance of adaptive IIR filterbanks with variable center frequencies

Autor: D. Sturim, D.J. Plaza, J. Weixel, G. Coutu
Rok vydání: 2002
Předmět:
Zdroj: Proceedings of 27th Asilomar Conference on Signals, Systems and Computers.
DOI: 10.1109/acssc.1993.342354
Popis: The theory and performance of adaptive IIR filterbanks with variable center frequencies is examined. First, the performance of a single adaptive IIR bandpass filter with fixed gain and variable center frequency is examined. The particular bandpass filter is derived from a first order Butterworth lowpass by a bilinear transformation. Next, a parallel filterbank of first order bandpass filters that cover the range up to the folding frequency is implemented. Performance error surfaces are generated. A range of frequencies are tested. The results are compared favourably with adaptive FIR filters. >
Databáze: OpenAIRE