[Pafgbt] BYU RT Correlator Data

[Anish Roshi]

Thanks Richard. I am out of Charlottesville. Will discuss with Rick about
the plan for checking this data when I am back.

Anish


On Thu, May 2, 2013 at 6:32 AM, Richard Black <aeldstesort at gmail.com> wrote:

> Rick and Anish,
>
> Here is some sample data from the real-time correlator. I'm sorry it took
> so long to get to you.
>
> I've also attached a python script that parses and plots the data. You'll
> need the numpy, pylab, h5py, time, sys, math, and poxy python libraries to
> run this code.
>
> "plot_corr_h5_zk.py [options] <file_name>" will plot the data in a
> user-specified manner.
>
> OPTIONS
> ------------------
> -a #
> Specify which antenna to plot against (all cross-PSDs or cross-correlation
> functions against #)
>
> -a #_#
> Specify which two antennas to plot against each other (cross-PSD or
> cross-correlation function between the two #'s)
>
> -a auto
> Plot PSDs or auto-correlation functions for all antennas
>
> -p (xx, yy, yx, xy, all)
> Specifies which polarization should be plotted-- this refers only to how
> the data was treated in the correlator. For this sample data, we only use
> 'xx.'
>
> -D
> Plots the cross/auto-correlation functions. If this option is omitted, the
> (cross-)PSDs are plotted instead.
>
> For example, to plot the cross-PSDs against antenna 0, you would use the
> following command:
> "./plot_corr_h5.py -a 0 -p xx corr.2456087.47037.h5c"
>
> If you wanted to plot the cross-correlation functions against antenna 0,
> you would use the following command:
> "./plot_corr_h5.py -a 0 -p xx -D corr.2456087.47037.h5c"
>
>
> If you wanted to plot the cross-PSD between antennas 0 and 1, you would
> use the following command:
> "./plot_corr_h5.py -a 0_1 -p xx corr.2456087.47037.h5c"
>
> If you wanted to plot the auto-correlation PSDs for all the antennas, you
> would use the following command:
> "./plot_corr_h5.py -a auto -p xx corr.2456087.47037.h5c"
>
>
>
> I hope this makes sense. Let me know if there is any confusion.
>
> Thanks,
>
> Richard Black
>
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