Title :
Partial-spectrum-reconstruction digital filter banks
Author :
Nguyen, Thong Q.
Author_Institution :
MIT Lincoln Lab., Lexington, MA, USA
Abstract :
Practical design methods for partial-spectrum-reconstruction (PSR) filter banks are presented. The filters are the discrete-Fourier-transform (DFT) or the discrete-cosine-transform (DCT) versions of prototype filters. The prototype filters are designed to minimize aliasing and distortions at the output. The proposed technique is extended to system with large numbers of channels (typically more than 1000 channels) using an interpolated filtering technique. Design examples are given to demonstrated the theory
Keywords :
digital filters; discrete Fourier transforms; discrete cosine transforms; filtering theory; interpolation; DCT; DFT; design methods; digital filter banks; discrete-Fourier-transform; discrete-cosine-transform; interpolated filtering technique; partial-spectrum-reconstruction; Attenuation; Channel bank filters; Digital filters; Discrete Fourier transforms; Discrete cosine transforms; Filter bank; Laboratories; Phase distortion; Speech coding; Transfer functions;
Conference_Titel :
Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1281-3
DOI :
10.1109/ISCAS.1993.393737
