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Biquad-parametric technique for digital filter design using bilinear pascal matrix operation

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5 Author(s)
Jetsarawoot Kreuakum ; Faculty of Engineering and Research Center for Communication and Information Technology, King Mongkut¿s Institute of Technology Ladkrabang, Bangkok 10520, Thailand ; Sorawat Chivapreecha ; Somyot Junnapiya ; Naohiko Shimizu
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This paper presents a design technique for digital filter design using Pascal matrix operation for s-z transformation. The s-z transformation that used is bilinear transformation, so the obtained Pascal matrix called bilinear Pascal matrix for s-z transformation. The standard analog transfer functions of biquad filter prototype are used to idea of proposed design. The proposed design technique can give various frequency characteristic of the obtained digital filter transfer function without any frequency transformation by s variables, only some setting of parameters that called biquad-parametric technique. This technique can reduce the computational complexity, which occurs from frequency transformation matrix in previous design method.

Published in:

Control, Automation and Systems, 2008. ICCAS 2008. International Conference on

Date of Conference:

14-17 Oct. 2008