DocumentCode
2818369
Title
An approximation algorithm for irregular-ripple filters
Author
De Queiroz, Antônio C M ; Calôba, Luiz P.
Author_Institution
Dept. of Electr. Eng., Rio de Janeiro, Brazil
fYear
1990
fDate
3-6 Sep 1990
Firstpage
430
Lastpage
433
Abstract
A simple formulation is presented for the approximation of low-pass filters with specified number and level of ripples in the passband and stopband. The order of any finite attenuation or transmission zero can be specified as simple or double, and these zeros are not restricted to the jw axis. The method can be used to numerically obtain the characteristic functions of approximations ranging from the Butterworth to the elliptic ones
Keywords
approximation theory; low-pass filters; Butterworth filters; approximation algorithm; characteristic functions; elliptic filters; finite attenuation; irregular-ripple filters; low-pass filters; passband; stopband; transmission zero; Approximation algorithms; Attenuation; Filtering theory; Filters; Frequency; H infinity control; Optimization methods; Passband;
fLanguage
English
Publisher
ieee
Conference_Titel
Telecommunications Symposium, 1990. ITS '90 Symposium Record., SBT/IEEE International
Conference_Location
Rio de Janeiro
Type
conf
DOI
10.1109/ITS.1990.175641
Filename
175641
Link To Document