error while executing textbook MATLAB code?
1 回表示 (過去 30 日間)
古いコメントを表示
I am studying Fourier transform through book of alex palamides and it states that there is a property of fourier transform due to which convolution of two time domain signals is equal to inverse fourier*(product of fourier transforms of signals)
But when i try to put this concept to MATLAB as demonstrated in book , i get error shown in attached photo. Although i have wrote exactly same code as on page 312 of Book
My code is follow:
syms t w
x1=heaviside(t)-heaviside(t-2);
x2=heaviside(t)-heaviside(t-4);
X1=fourier(x1,w);
X2=fourier(x2,w);
right =ifourier(X1*X2,t);
ezplot(right,[0 8])
0 件のコメント
採用された回答
Walter Roberson
2019 年 5 月 18 日
In your release of MATLAB, ezplot() was not compatible with plotting symbolic expressions, and fplot() had to be used instead.
However, the ifourier() is giving unusable results that neither ezplot() nor fplot() can use.
The work-around, valid from R2012a, is:
right = ifourier( rewrite(X1*X2, 'exp'), t);
fplot(right, [0 8])
3 件のコメント
その他の回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で Calculus についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!