清空筛选条件
清空筛选条件

error while executing textbook MATLAB code?

1 次查看（过去 30 天）
ABTJ
ABTJ 2019-5-14
评论： ABTJ 2019-5-19
Capture.PNG
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])

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2019-5-18
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 个评论
显示 1更早的评论

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Calculus 的更多信息

标签

产品


版本

R2015a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by