Title :
A quadratic-constrained least-squares approach to linear phase orthonormal filter bank design
Author :
Nguyen, Truong Q. ; Soman, A.K. ; Vaidyanathan, P.P.
Author_Institution :
MIT Lincoln Lab., Lexington, MA, USA
Abstract :
The design of M-channel paraunitary linear-phase filter banks is considered. It is shown that the symmetry polarities of linear-phase filters must be a particular pattern if the filters have narrow transition band and high stopband attenuation. The general design problem is formulated as a quadratic-constrained optimization problem which offers fast convergence. An example is given to demonstrate the theory
Keywords :
circuit optimisation; convergence; delay circuits; digital filters; filtering theory; least squares approximations; fast convergence; linear-phase filters; orthonormal filter bank design; quadratic-constrained least-squares approach; quadratic-constrained optimization problem; symmetry polarities; Attenuation; Convergence; Cost function; Design optimization; Filter bank; Image coding; Laboratories; Nonlinear filters; Speech coding; Symmetric matrices;
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.1993.393738
