### fast folding algorithm

**(FFA)**
(algorithm to find the periods of periodic data)

The **fast folding algorithm** is an efficient algorithm to
find periodicity in **time series data** through data folding.
It applies a method somewhat like that of the fast Fourier transform. Among its
uses is identification of pulsars from radio observations
collected over time.

(*mathematics,method*)
**Further reading:**

http://en.wikipedia.org/wiki/Fast_folding_algorithm

https://ui.adsabs.harvard.edu/abs/1969IEEEP..57..724S/abstract

https://books.google.com/books?id=dVQ2AQAAIAAJ&q=fast+folding#v=snippet&q=fast%20folding&f=false

Index