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ycendes / Transient-RFI

Some work relating to transeint RFI flagging
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How to get the RFI's data #1

Open zhangasia opened 4 years ago

zhangasia commented 4 years ago

I am studying some things about RFI，Can i ask you some questions？

ycendes commented 4 years ago

Hi there, sure! Hopefully I can answer them.

Best -Yvette

On Sat, Sep 19, 2020 at 11:04 PM zhangyazhou notifications@github.com wrote:

I am studying some things about RFI，Can i ask you some questions？

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zhangasia commented 4 years ago

Thinks,my email is zhangyazhou@xao.ac.cn.Thanks again！

zhangasia commented 4 years ago

I am studying how to indentify and remove RFI in astromony singal,I want to konw how to get real RFI data and processs on them?Thinks!!!

zhangasia commented 4 years ago

Hello,Can we communicate by email?

ycendes commented 4 years ago

Hi there,

My apologies, somehow this slipped through the cracks. Did you find a data set to work on?

If not, most radio telescopes on Earth have public data archives where all data is free to download after a year or two. Here are two archive examples:

(Pretty much all data in my experience has a few percent RFI from these sites. Finding a high RFI one would probably just be word of mouth as that's not a recorded statistic, I don't have one saved right now or anything.)

You can then do a google search to find tutorials on how to process the data. Here's some the VLA has for example, with data sets you can download- https://casaguides.nrao.edu/index.php/Karl_G._Jansky_VLA_Tutorials

It looks like out of those this one has RFI in the data set and points out how to get rid of it, so it might be a good one to start with- https://casaguides.nrao.edu/index.php?title=VLA_Radio_galaxy_3C_129:_P-band_continuum_tutorial-CASA5.5.0

Finally, most astronomers won't do RFI manually in the long run, but use a flagging software. I use this one for most of my data- https://sourceforge.net/p/aoflagger/wiki/Home/

I hope this helps! Sorry again for the delay.

Best -Yvette

On Tue, Sep 22, 2020 at 10:52 AM zhangyazhou notifications@github.com wrote:

I am studying how to indentify and remove RFI in astromony singal,I want to konw how to get real RFI data and processs on them?Thinks!!!

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/ycendes/Transient-RFI/issues/1#issuecomment-696773684, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABCW2LTK54Z2OH5YPF7FB43SHC23RANCNFSM4RTMFSWA .