<p>I have <a href="https://www.mpifr-bonn.mpg.de/research/fundamental/htru" rel="nofollow noreferrer">High Time Resolution Universe</a> dataset. I have applied de-dispersion on this HTRU dataset, and thereafter I applied the folding function to fold the dataset.</p>

<p>How I can find that the periodicity of the signal using a fast-folding<a href="https://i.sstatic.net/9u3Tn.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/9u3Tn.jpg" alt="enter image description here"></a> algorithm?</p>

CC BY-SA 4.0
2019-09-09T06:27:02.027Z
https://archive.ics.uci.edu/ml/datasets/HTRU2 . i am using this dataset for finding the pulsar.
user28958
CC BY-SA 4.0
2019-09-09T13:31:14.733Z
Meta discussion: https://astronomy.meta.stackexchange.com/q/534/6
called2voyage
CC BY-SA 4.0
2019-09-24T17:43:04.300Z
can anyone help me?
user28958
CC BY-SA 4.0
2019-09-24T19:40:23.850Z
IMO it belongs to Computational Science subforum.
sanaris
CC BY-SA 4.0
2019-09-27T15:43:37.980Z
Can you describe what you mean by "de-dispersion" and "the folding function" and "fast folding algorithm". None of these things are obvious.
ProfRob
CC BY-SA 4.0
2019-09-28T19:12:37.080Z
@RobJeffries De-dispersion is describe here, and it seems to be the appropriate subject matter: http://www.jb.man.ac.uk/distance/frontiers/pulsars/section4.html
called2voyage
CC BY-SA 4.0
2019-09-28T19:14:54.197Z
@RobJeffries Fast Folding algorithm is described here: https://arxiv.org/abs/1703.05581
called2voyage
CC BY-SA 4.0
2019-09-28T19:15:36.303Z
"Folding function" does seem to be context-dependent, but maybe the above two pieces of info will help ascertain that.
called2voyage
CC BY-SA 4.0
2019-10-02T19:24:47.200Z
@user28958 The bounty I put on your question just expired. If you found the solution to this on your own, you can add your own answer to help out the next person who has this problem.
called2voyage
<radio-astronomy><data-analysis><algorithm>
How to apply Fast Folding algorithm?
user28958
# How to apply Fast Folding algorithm?

(Asked by: username_0 on 2019-09-08)

I have [High Time Resolution Universe](https://www.mpifr-bonn.mpg.de/research/fundamental/htru) dataset. I have applied de-dispersion on this HTRU dataset, and thereafter I applied the folding function to fold the dataset.

How I can find that the periodicity of the signal using a fast-folding[![enter image description here](https://i.sstatic.net/9u3Tn.jpg)](https://i.sstatic.net/9u3Tn.jpg) algorithm?

**Tags:** radio-astronomy, data-analysis, algorithm
> **Comments:**
> **username_0**: https://archive.ics.uci.edu/ml/datasets/HTRU2 . i am using this dataset for finding the pulsar.  
> **username_1**: Meta discussion: https://astronomy.meta.stackexchange.com/q/534/6  
> **username_0**: can anyone help me?  
> **username_2**: IMO it belongs to Computational Science subforum.  
> **username_3**: Can you describe what you mean by "de-dispersion" and "the folding function" and "fast folding algorithm". None of these things are obvious.  
> **username_1**: @RobJeffries De-dispersion is describe here, and it seems to be the appropriate subject matter: http://www.jb.man.ac.uk/distance/frontiers/pulsars/section4.html  
> **username_1**: @RobJeffries Fast Folding algorithm is described here: https://arxiv.org/abs/1703.05581  
> **username_1**: "Folding function" does seem to be context-dependent, but maybe the above two pieces of info will help ascertain that.  
> **username_1**: @user28958 The bounty I put on your question just expired. If you found the solution to this on your own, you can add your own answer to help out the next person who has this problem.  

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## 0 answers

