Title :
Improvement of factorization for two-channel perfect reconstruction FIR filter banks
Author :
Guangming, Shi ; Licheng, Jiao
Author_Institution :
Key Lab. of Radar Signal Process., Xidian Univ., Xi´´an, China
fDate :
6/23/1905 12:00:00 AM
Abstract :
There is an increasing interest in designing structurally perfect reconstruction (PR) filter banks because the system can be implemented by using sum of powers-of-two (SOPOT) coefficients. The structurally PR filter banks can be designed by factorization based on the lifting scheme. But there exist some problems that are addressed in this paper. Improvement of the factorization to solve the problems is proposed. The procedures of proof for the improvement are given. Finally, the given examples show that the proposed method is effective
Keywords :
FIR filters; channel bank filters; matrix decomposition; network synthesis; signal reconstruction; factorization; filter banks design; lifting scheme; perfect reconstruction FIR filter banks; sum of powers-of-two coefficients; two-channel filter banks; Constraint optimization; Delay; Design optimization; Discrete wavelet transforms; Filter bank; Finite impulse response filter; Laboratories; Polynomials; Radar signal processing; Signal design;
Conference_Titel :
Statistical Signal Processing, 2001. Proceedings of the 11th IEEE Signal Processing Workshop on
Print_ISBN :
0-7803-7011-2
DOI :
10.1109/SSP.2001.955355
