Hi,
thanks for your answers.
My problem is that I want to perform this convolution many times, so how should i do it only in the frequency domain? zero paddin in the freq domain is not trivial (convolution with a sinc).
The full problem is described in the attached pdf.
thank you
Hi,
Thank you for your answer.
What I really want is to perform the above operation in the frequency domain.
I need to perform this operation many times (a few tens of millions, while the signals are short N<40) so if its simpler in the frequency domain I rather do it there many times and...
Hi,
I have the following problem:
Let x,y be finite real valued sequences defined on 0...N-1 and let g be a non negative integer .
define
also on 0..N-1.
In addition, the DFT of y is known in closed form.
Is there a way to write z as some cyclic convolution, so that with the...
Hi,
lets assume there is no g (g=inf).
notice the the sum end at the index n, not N.
I'm trying to see directly the convolution theorem but I get stuck:
The problem is that the second sum depends on k so the double sum doesn't factor to the product of DFTs.
what am I missing?
thank you
Let x,y be finite real valued sequences defined on 0...N-1 and let g be a non negative integer .
define
also on 0..N-1.
In addition, the DFT of y is known in closed form.
Is there a way to write z as some cyclic convolution, so that with the help of the convolution theorem z can be calculated...