A Fast Chi-squared Technique For Period Search of Irregularly Sampled Data
Data Analysis, Statistics and Probability
2009-04-17 v1 Instrumentation and Methods for Astrophysics
Abstract
A new, computationally- and statistically-efficient algorithm, the Fast algorithm, can find a periodic signal with harmonic content in irregularly-sampled data with non-uniform errors. The algorithm calculates the minimized as a function of frequency at the desired number of harmonics, using Fast Fourier Transforms to provide performance. The code for a reference implementation is provided.
Keywords
Cite
@article{arxiv.0901.1913,
title = {A Fast Chi-squared Technique For Period Search of Irregularly Sampled Data},
author = {David M. Palmer},
journal= {arXiv preprint arXiv:0901.1913},
year = {2009}
}
Comments
Source code for the reference implementation is available at http://public.lanl.gov/palmer/fastchi.html . Accepted by ApJ. 24 pages, 4 figures