Title :
On the Design of Cosine-Modulated Filter Banks Using Recurrent Frequency-Response Masking
Author :
De Barcellos, Luiz C R ; Diniz, Paulo S R ; Netto, Sergio L.
Author_Institution :
PEE-COPPE, Fed. Univ. of Rio de Janeiro
Abstract :
The cosine-modulated filter bank (CMFB) is an attractive filter bank structure with a simplified design, being based on a single prototype filter. Recent advances have reduced the overall CMFB computational cost by employing the frequency-response masking (FRM) approach to design the prototype filter. The present paper discusses the use of recurrent-FRM stages to design CMFBs. It is verified how by applying several layers of the FRM method can further reduce the computational complexity of resulting CMFB structures. This technique also yields a simpler procedure when one is interested on optimizing the CMFB performance with respect to practical figures-of-merit such as the intersymbol interference (ISI) and interchannel interference (ICI)
Keywords :
adjacent channel interference; filters; frequency response; integrated circuit design; intersymbol interference; cosine-modulated filter banks design; figures-of; interchannel interference; intersymbol interference; recurrent frequency-response masking; single prototype filter; Computational complexity; Computational efficiency; Design optimization; Electronic mail; Filter bank; Finite impulse response filter; Frequency; Helium; Intersymbol interference; Prototypes;
Conference_Titel :
Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0387-1
DOI :
10.1109/APCCAS.2006.342213
