Title :
Design of Cosine-Modulated Pseudo-QMF Banks Using Semidefinite Programming Relaxation
Author :
Kha, H.H. ; Tuan, H.D. ; Nguyen, T.Q.
Author_Institution :
Sch. of Electr. Eng. & Telecommun., New South Wales Univ., Sydney, NSW
Abstract :
The paper proposes a new approach for the design of M-channel pseudo-quadrature mirror filter (QMF) banks. First, the convex hull of 2Mth band linear phase filters admitting linear phase spectral factors is analytically described by semidefinite programming (SDP). Then, the prototype filter design is cast into an SDP problem, which is efficiently solved. Design examples are presented to illustrate the effectiveness of the proposed method and to evaluate the design performance in comparison with the existing designs.
Keywords :
FIR filters; channel bank filters; linear phase filters; FIR filters; cosine-modulated filter banks; linear phase filters; pseudo-quadrature mirror filter banks; semidefinite programming relaxation; Algorithm design and analysis; Attenuation; Bandwidth; Design optimization; Filter bank; Finite impulse response filter; Mirrors; Nonlinear filters; Prototypes; Spectral analysis;
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
DOI :
10.1109/ISCAS.2007.378805
