Title :
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
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;
Conference_Titel :
Communications, 2003. APCC 2003. The 9th Asia-Pacific Conference on
Print_ISBN :
0-7803-8114-9
DOI :
10.1109/APCC.2003.1274278
