matlab을 이용한 아날로그 여파기 설계(영문 보고서)
- 최초 등록일
- 2010.07.06
- 최종 저작일
- 2007.09
- 6페이지/
한컴오피스
- 가격 1,500원
소개글
matlab을 이용한 아날로그 여파기 설계 (Design a analog filter using mathlab)
-소스코드첨부(add to source code)
-결과 이미지 첨부(add to result image)
-해석첨부(analysis)
목차
1. goal definition
2. spec definition
3. synthesis (source code)
4. analysis
5. document
6. reliability
본문내용
1. goal definition
(1) Understanding of the wave filter system which passes only wanted frequencies and rejects unwanted frequencies.
(2) Understand the theory of butterworth filter
(3) Design a analog filter using matlab
2. spec definition
Design the filter to the specifications above. Listen and compare the wave file before and after passing the filter.
δp= pass magnitude
δs= stop magnitude
ωp= pass frequency
ωs= stop frequency
3. synthesis
% spec definition
fp = 5512.5;
fs = 11025;
delp = 0.10875;
dels = 0.001;
%frequency and magnitude
wp = 2*pi*fp;
ws = 2*pi*fs;
rp = -20*log10(1-delp);
rs = -20*log10(dels);
% designed filter`s order, cut-off frequency
[n wc] = buttord(wp, ws, rp, rs, `s`)
[np dp] = butter(n, wc, `s`) % designed filter`s numerator and denominator polynomial coefficients
참고 자료
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