Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers (1994)
Pacific Grove, CA, USA
Oct. 31, 1994 to Nov. 2, 1994
Youhong Lu , Dept. of Electr. Eng., Maryland Univ., Baltimore, MD, USA
J.M. Morris , Dept. of Electr. Eng., Maryland Univ., Baltimore, MD, USA
We present a design technique for perfect-reconstruction cosine-modulated filter banks. The design of analysis and synthesis filter banks in this case is much more efficient in terms of computation compared with previous work. In particular, a design technique for perfect-reconstruction of FIR analysis and synthesis filter banks with arbitrary length is presented. The existence of synthesis/analysis filter banks for given analysis/synthesis filter banks are addressed via frame theory and (a time domain design technique) biorthogonal-like functions (BLFs), which have advantages over traditional short-time Fourier transform (STFT) and filter bank summations (FBS). A set of Gaussian analysis or synthesis filter banks is possible in our filter bank system.<
band-pass filters, signal reconstruction, filtering theory, Gaussian processes, modulation, time-domain synthesis
Youhong Lu and J. Morris, "On perfect cosine-modulated filter banks," Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers(ACSSC), Pacific Grove, CA, USA, 1995, pp. 1010-1014.