Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
Drexel University or The Math Forum.
|
|
|
|
Re: alternative to conv command
Posted:
Apr 29, 2011 3:08 PM
|
|
Hi,
thanks for the reply. I am quite sure it is conv command. I step through the code and it takes 1min and 14s for a sequence of length 2048e3 in a 1.2 GHz cpu. Do you think this is resonable?
"Matt J" wrote in message <ipevo5$7p1$1@fred.mathworks.com>...
> "Balachander Narasimhan" <balxxxxxchand@whatever.com> wrote in message <ipev95$rkb$1@fred.mathworks.com>...
> > Hi,
> >
> > I have a long sequence to be convolved with a filter. The conv command is too slow for this. What is the alternative here?
>
>
> Do an FFT-based convolution?
>
> Failing that, why do you think that there should be a better alternative to conv? Is there some structure in this filter/sequence that can be exploited?
>
> If the sequence is long, it may not be CONV that is failing. You simply have a large computation to perform.
|
|
|
|
