| Author |
Comment/Response |
Sérgio Costa
|
 12/22/04 04:52am
I´m using the InverseFourierTransform function from the Signals and Systems package. I want to calculate the Inverse Fourier Transform of an expression like this one:
H = a/((b + I*w)(c + I*w));
Replacing a=b=1 I obtain:
H = 1/((1 + I*w)(c + I*w));
InverseFourierTransform[H, w, t]
\!\(\(\((\[ExponentialE]\^\(-t\) - \[ExponentialE]\^\(\(-c\)\ t\))\)\ \
UnitStep[t]\)\/\(\(-1\) + c\)\)
Which is correct. But, when I substitue b=2:
H = 1/((1 + I*w)(2 + I*w));
InverseFourierTransform[H, w, t]
\!\(\(-\[ExponentialE]\^\(1\/2\ \((\(-3\)\ t - Abs[t])\)\)\)\)
Which is not correct. Could this be a bug with the function? I hope someone can help me. Please check the attached notebook.
Attachment: problem.nb, URL: , |
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