DocumentCode
273810
Title
Design of long FIR-equalizers in the frequency domain
Author
Gaunholt, H. ; Rasmussen, E.W.
Author_Institution
Tech. Univ. of Denmark, Lyngby, Denmark
fYear
1989
fDate
5-8 Sep 1989
Firstpage
55
Lastpage
59
Abstract
The design of FIR-equalizers approximating arbitrary e.g. measured frequency domain specifications is considered. It is shown that the frequency sampled least-square error may be found without iteration and that the coefficient matrix of the normal equations is a Toeplitz matrix making it possible efficiently to solve the normal equations with the Levinson algorithm. By this it has been possible to design a digital FIR equalizer for a loudspeaker system with `don´t care´ frequency bands and with as many as 400 tap coefficients and 800 target specifications. The CPU-time consumption has been less than 10 min. on a personal computer
Keywords
digital filters; equalisers; CPU-time; Levinson algorithm; Toeplitz matrix; coefficient matrix; digital FIR equalizer; frequency domain; frequency domain specifications; frequency sampled least-square error; long FIR-equalizers; loudspeaker system; normal equations; tap coefficients; target specifications;
fLanguage
English
Publisher
iet
Conference_Titel
Circuit Theory and Design, 1989., European Conference on
Conference_Location
Brighton
Type
conf
Filename
51577
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