DocumentCode :
3158150
Title :
A courseware package for iterative design of FIR digital filters
Author :
Houts, Ronald C.
Author_Institution :
Dept. of Electr. Eng., Alabama Univ., Tuscaloosa, AL, USA
fYear :
1990
fDate :
1-4 Apr 1990
Firstpage :
228
Abstract :
A computer algorithm written in BASIC is presented for the realization of a finite impulse response (FIR) digital filter designed using the Fourier series method. This method produces a linear-phase FIR filter of length L subject to an idealized geometry which assumes the passband is flat, the transition band is zero, and the stopband has infinite attenuation. The design technique allows the user to specify the minimum stopband attenuation (in dB). The resulting amplitude response is displayed on the terminal screen with the desired attenuation identified by a horizontal line throughout the stopband. The user either can modify L or insert/change the window function until the response is acceptable. The program is written for use with a personal computer and does not require a graphics board. The digital filter design package converts the Fourier series design algorithm from a hit-and-miss proposition to an iterative procedure which provides reasonable solutions
Keywords :
circuit CAD; digital filters; iterative methods; series (mathematics); software packages; BASIC; FIR digital filters; Fourier series design algorithm; Fourier series method; amplitude response; computer algorithm; courseware package; digital filter design package; filter length; finite impulse response; flat passband; infinite attenuation stopband; iterative design; linear-phase FIR filter; minimum stopband attenuation; personal computer; software packages; window function; zero transition band; Algorithm design and analysis; Attenuation; Courseware; Digital filters; Finite impulse response filter; Fourier series; Geometry; Iterative algorithms; Packaging; Passband;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Southeastcon '90. Proceedings., IEEE
Conference_Location :
New Orleans, LA
Type :
conf
DOI :
10.1109/SECON.1990.117806
Filename :
117806
Link To Document :
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