Design and implementation of biquad digital filter

Author

Pradabpet, C. ; Yimman, S. ; Hinjit, W. ; Chivapreecha, S. ; Dejhan, K.

Author_Institution

Dept. of Ind. Technol., Rajabhat Inst. Phranakhon Si Ayutthata, Phranakhon Si Ayutthaya, Thailand

Volume

3

fYear

2003

fDate

21-24 Sept. 2003

Firstpage

1138

Abstract

This paper presents a design and implementation of biquad digital filter based on poles-zeros placement on a unit circle of z-plane. The proposed digital filter can be given three frequency-responses as lowpass filter (LPF), highpass filter (HPF) and bandpass filter (BPF) at the same time. In the design process the Matlab program was used, for real world implementation by using TMS320C31 DSP board. The experimental results shown by the dynamic signal analyzer to indicate that the obtained frequency responses give the same results as design specifications.

Keywords

band-pass filters; biquadratic filters; digital filters; digital signal processing chips; high-pass filters; low-pass filters; poles and zeros; TMS320C31 DSP board; active filter; bandpass filter; biquad digital filter; dynamic signal analyzer; highpass filter; lowpass filter; poles-zeros placement; unit circle; Active filters; Band pass filters; Communication industry; Cutoff frequency; Digital filters; Digital signal processing; Equations; Filtering theory; Transfer functions; Transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2003. APCC 2003. The 9th Asia-Pacific Conference on

Print_ISBN

0-7803-8114-9

Type

conf

DOI

10.1109/APCC.2003.1274278

Filename

1274278