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Discussion Groups | Comp.DSP | continuous time fourier transform


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continuous time fourier transform - samar - 2008-06-29 02:53:00

i hv to make a program for continuous time fourier series without
using its inbuilt function in matlab

ca anybody plz help me befor 30th june at s...@live.com


Regards


Re: continuous time fourier transform - Donald Reay - 2008-06-29 08:00:00



Re: continuous time fourier transform - Rick Lyons - 2008-06-29 11:10:00

On Sat, 28 Jun 2008 23:53:26 -0700 (PDT), samar
<s...@gmail.com> wrote:

>i hv to make a program for continuous time fourier series without
>using its inbuilt function in matlab
>
>ca anybody plz help me befor 30th june at s...@live.com
>
>
>Regards

Hi,
  it sounds like you're using a computer to solve your 
problem.  Sadly, no one can perform continuous 
signal processing on a computer.

So what really is the problem your professor gave you?
Does he want you to write a program to perform the 
discrete Fourier transform (DFT), or maybe a fast 
Fourier transform (FFT)?

[-Rick-]


Re: continuous time fourier transform - Ron N - 2008-06-29 12:59:00



Re: continuous time fourier transform - glen herrmannsfeldt - 2008-06-30 15:00:00

Ron N wrote:

> On Jun 29, 8:10 am, Rick Lyons <R...@_BOGUS_ieee.org> wrote:
>>Sadly, no one can perform continuous
>>signal processing on a computer.

> Of course you can.  There's lots of symbolic math software.
> Of course you need a to do this on tractable closed form
> symbolic functions instead of arbitrary sampled data.

There are some calculators with pretty good symbolic
math, too.  Though I don't know that any yet do
Fourier transforms, it wouldn't be hard.

The TI-92 is pretty good, and reasonably affordable, too.
(Discontinued, but available used.)

-- glen


Re: continuous time fourier transform - Steven G. Johnson - 2008-06-30 18:15:00

On Jun 29, 12:59 pm, Ron N <ron.nichol...@gmail.com> wrote:
> On Jun 29, 8:10 am, Rick Lyons <R...@_BOGUS_ieee.org> wrote:
>
> > Sadly, no one can perform continuous
> > signal processing on a computer.
>
> Of course you can.  There's lots of symbolic math software.
> Of course you need a to do this on tractable closed form
> symbolic functions instead of arbitrary sampled data.

You don't have to do it with symbolic math; there are plenty of
numerical techniques that can compute such things to any desired
accuracy (given enough computing power) (although which technique you
use will depend on what kind of function you are transforming).
However, there's not enough information about the original poster's
needs to give sensible advice in this case.


Re: continuous time fourier transform - Donald Reay - 2008-07-01 11:24:00