Title :
Laguerre network design in complex domain
Author :
Masnadi-Shirazi, M.A. ; Safdar, M.
Author_Institution :
Dept. of Electr. Eng., Shiraz Univ., Iran
Abstract :
An eigenfilter method is developed for design of arbitrary complex coefficient Laguerre digital filters. By minimizing a quadratic measure of the error in the passband and stopband, a complex eigenvector of an appropriate complex Hermitian and positive definite matrix is computed to obtain the complex-valued Laguerre filter coefficients. Also two analytical methods are proposed to evaluate the optimum Laguerre parameter. These are: a modified version of the real Laguerre case in time domain, and a new method for the frequency domain. The numerical exhaustive search method, used in the real Laguerre filter, can also be applied to the complex case
Keywords :
FIR filters; Hermitian matrices; IIR filters; digital filters; eigenvalues and eigenfunctions; frequency-domain synthesis; time-domain synthesis; Laguerre network design; complex Hermitian; complex domain; complex eigenvector; eigenfilter method; exhaustive search method; frequency domain; passband error; positive definite matrix; quadratic measure; stopband error; time domain; Adaptive filters; Digital filters; Finite impulse response filter; Frequency domain analysis; IIR filters; Intelligent networks; Nonlinear filters; Passband; Phased arrays; Sensor arrays;
Conference_Titel :
Electronics, Circuits and Systems, 2000. ICECS 2000. The 7th IEEE International Conference on
Conference_Location :
Jounieh
Print_ISBN :
0-7803-6542-9
DOI :
10.1109/ICECS.2000.911493
