Title :
Even Order Biquad Digital Filter Design Using Pascal Matrix
Author :
Srisangngam, Pichet ; Chivapreecha, Sorawat ; Dejhan, Kobchai
Author_Institution :
Fac. of Eng. & Res. Center for Commun. & Inf. Technol., King Mongkut´´s Inst. of Technol. Ladkrabangx, Bangkok
Abstract :
This paper presents new design method and structure of IIR digital filter. The new design method is based on bilinear s-z transformation and Pascal matrix theorem. These theories are used to transform the normalized analog transfer functions to digital transfer functions. The structure of IIR digital filter is modified for even order biquad digital filter which can give frequency response simultaneously as low-pass, high-pass, band-pass and band-stop filtering. The new structure use delay units the same as single frequency response IIR digital filters that has same order.
Keywords :
IIR filters; band-pass filters; band-stop filters; high-pass filters; low-pass filters; transfer function matrices; transforms; IIR digital filter; Pascal matrix; analog transfer functions; band-pass filtering; band-stop filtering; bilinear s-z transformation; even order biquad digital filter design; frequency response; high-pass filtering; low-pass filtering; Band pass filters; Delay; Design engineering; Design methodology; Digital filters; Equations; Frequency response; IIR filters; Information technology; Transfer functions;
Conference_Titel :
Communications and Information Technologies, 2008. ISCIT 2008. International Symposium on
Conference_Location :
Lao
Print_ISBN :
978-1-4244-2335-4
Electronic_ISBN :
978-1-4244-2336-1
DOI :
10.1109/ISCIT.2008.4700207
