Title :
Design of cosine-modulated filter bank prototype filters using the frequency-response masking approach
Author :
Diniz, Paulo S R ; Barcellos, Luiz C R ; Netto, Sergio L.
Author_Institution :
Program de Engenharia Eletrica, Univ. Federal de Rio de Janeiro, Brazil
Abstract :
We use the frequency-response masking (FRM) approach to design prototype filters for cosine-modulated filter banks in the nearly perfect reconstruction case. With such an approach, it is possible to design a FRM filter with overall order almost equal to the direct-form FIR design, with only slight changes in the values of the inter-carrier and inter-symbol interferences and the attenuation of the bank filters. The result is an efficient design with reduced number of multipliers for the overall structure
Keywords :
FIR filters; digital filters; intersymbol interference; linear phase filters; signal reconstruction; FIR design; FRM filter; bank filter attenuation; cosine-modulated filter bank; frequency-response masking; inter-carrier interference; inter-symbol interference; nearly perfect reconstruction; prototype filters; Band pass filters; Delay; Design methodology; Filter bank; Finite impulse response filter; Frequency response; Interference; Niobium; Passband; Prototypes;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-7041-4
DOI :
10.1109/ICASSP.2001.940626
