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On Monday, November 14, 2005 5:59 PM McGwier
[mailto:[EMAIL PROTECTED] wrote: > I am attempting to understand what advantage you would gain by
reducing > the sample rate. The FPGA's only jobs are run an oscillator, mix,
and > resample using special form filters. Now that the halfband
filters are > in, you can reduce the sample rate and get a very nice response
in so > doing. You could then proceed to operate on the downsampled
signal in > the computer. I just don't under the system problem you are
attempting > to solve by changing the hardware in this case. Could you
elaborate? Could you provide an example of how to use the halfband
filters for downsampling? PS: See my other response for an explanation on why change
the sample rate. I am not sure if performing decimation does the same effect
for moving under sampled images in the FFT frequency response. Thanks, Mike |
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