Title :
On lowpass filters having multiple pairs of imaginary-axis zeros at two distinct points in the stopband with weighted l.m.s. error characteristic
Author :
Phuc, Dang Tan ; Attikiouzel, J.
Author_Institution :
University of Western Australia, Department of Electrical and Electronic Engineering, Perth, Australia
Abstract :
We introduce a solution to lowpass filters with multiple pairs of transmission zeros at two distinct frequencies in the stop-band. The filters derived are subjected to the criterion of minimum weighted least-mean-square error in any interval of interest in the passband. It is shown that the maximally flat sharp-cutoff filters are special cases of this new approximation.
Keywords :
error analysis; low-pass filters; poles and zeros; frequencies; infinite attenuation; least mean square error; lowpass filters; maximally flat sharp cutoff filters; multiple pairs of imaginary axis zeros; passband; stopband; transmission zeros; weighted LMS error characteristic;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19780476
