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Thread Subject: Resampling IQ data in Matlab

Subject: Resampling IQ data in Matlab

From: Steve

Date: 19 Mar, 2008 18:51:12

Message: 1 of 2

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Hello all,
I have a set of IQ data sampled at around 4.65Mhz and I want to
resample this data to 19.66MHz.

I tried the Matlab's resample function.

Resampled_x = resample(x,4654556,19660800,0);

I get the following error:

??? Error using ==> upfirdn at 82
The product of the downsample factor Q and the upsample factor P must
be less than 2^31.

Any help is really appreciated.

Thanks,
Steve.

Subject: Resampling IQ data in Matlab

From: Dan Haeg

Date: 19 Mar, 2008 22:08:02

Message: 2 of 2

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Steve <sjthomas2@gmail.com> wrote in message
<141afa44-e176-4d4e-be80-eab2c4622cd4@a70g2000hsh.googlegroups.com>...
> Hello all,
> I have a set of IQ data sampled at around 4.65Mhz and I
want to
> resample this data to 19.66MHz.
>
> I tried the Matlab's resample function.
>
> Resampled_x = resample(x,4654556,19660800,0);
>
> I get the following error:
>
>
> ??? Error using ==> upfirdn at 82
> The product of the downsample factor Q and the upsample
factor P must
> be less than 2^31.
>
> Any help is really appreciated.
>
> Thanks,
> Steve.

According to the help I think you should do this:

Resampled_x = resample(x,3451,817,0);

Dan

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