IIR Filter Design Using MATLAB
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IIR_Filter_Design_Using_MATLAB
설명
I. IIR Filter Order Selection
※ IIR Filter는 Filter 차수를 임의로 정하는 것이 아니라 Filter의 Spec에 따라 최적의 Filter 차수를 결정하여 사용해야 한다.
순서
레포트/기타
IIR Filter Design Using MATLAB
,기타,레포트
IIR Filter Design Using MATLAB에 대한 reference(자료)입니다.
1. buttord
- Butterworth Filter order selection
▶ 기본 형태
[n,wn] = buttord(wp, ws, Rp, Rs)
n : IIR Filter order
wn : Normalized Cutoff Frequency (where, 1 corresponds to radians/sample)
wp : Normalized Passband Edge Frequency (where, 1 corresponds to radians/sample)
ws : Normalized Stopband Edge Frequency (where, 1 corresponds to radians/sample)
Rp : Passband Ripple (Rp dB)
Rs : Stopband Attenuation (Rs dB)
For example,
Lowpass : wp = 0.1, ws = 0.2
Highpass : wp = 0.2, ws = 0.1
Bandpass : wp = [0.2 0.7], ws = [0.1 0.8]
Bandstop : wp = [0.1 0.8], ws = [0.2 0.7]
2. Cheb1ord / Cheb2ord
- Chebyshev Filter Type I / Type II order selection
▶ 기본 형태
[n,wn] = cheb1ord(wp, ws, Rp, Rs) % Type I
[n,wn] = cheb2ord(wp, ws, Rp, Rs) % Type II
n : IIR Filter order
wn : Normalized Cutoff Frequency…(drop)
다.
IIR Filter Design Using MATLAB에 대한 자료입니다.
