Title :
An iterative method for the design of FIR partial filter banks
Author :
Mo, Y.S. ; Lu, W.-S. ; Antoniou, A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
An iterative algorithm for the design of FIR partial filter banks (PFBs) is described. The design problem is formulated as a 4th-order nonlinear optimization problem in which the objective function is a weighted sum of a reconstruction-error term and an aliasing-error term. The optimization problem is solved by iteratively minimizing a pair of quadratic functions. Explicit formulas for evaluating the minimums of these quadratic functions are derived, which lead to an efficient and fast algorithm. Two design examples are presented to illustrate the proposed algorithm. The PFBs obtained are then used to compress bathymetric signals and electrocardiograms
Keywords :
FIR filters; band-pass filters; circuit optimisation; digital filters; iterative methods; FIR partial filter banks; aliasing-error term; bathymetric signals; electrocardiograms; iterative method; nonlinear optimization problem; objective function; quadratic functions; reconstruction-error term; weighted sum; Algorithm design and analysis; Channel bank filters; Design methodology; Design optimization; Filter bank; Finite impulse response filter; Image reconstruction; Iterative algorithms; Iterative methods; Speech analysis;
Conference_Titel :
Circuits and Systems, 1997. Proceedings of the 40th Midwest Symposium on
Conference_Location :
Sacramento, CA
Print_ISBN :
0-7803-3694-1
DOI :
10.1109/MWSCAS.1997.662166
