On 12/29/2015 01:01 PM, Simon Olvhammar wrote:
Hi,
I have a question regarding the block RA:FFT in the RA Blocks package.
If I set, for example, the decimation at 100 does this mean that only
1 in 100 items will be kept?
In that case it would occur to me if, I do say a measurement of 100
minutes at a signal, I only get 1 minute of data?
Best regards
Simon
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No, the decimation is applied to FFT *output* frames, after
integration. It is typically the case that in radio astronomy spectrometry
that you integrate spectra over some time period, since the SNR is
typically quite poor.
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