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2009MNRAS.392..190K - Mon. Not. R. Astron. Soc., 392, 190-204 (2009/January-1)
Statistical tests for changes in the amplitude, frequency or phase of a sinusoidal variation.
KOEN C.
Abstract (from CDS):
The problem considered is that of testing for small changes over time in the properties of a sinusoidal signal contaminated by noise. Two test statistics are proposed. The first is a frequency domain statistic based on the spectrum of the data, while the second is a time domain statistic due to Nyblom. Power studies are used to show that the Nyblom statistic is generally the better. The form of the Nyblom statistic appropriate for phase-change tests also performs well in testing for frequency changes.
Abstract Copyright: © 2008 The Authors. Journal compilation © 2008 RAS
Journal keyword(s): methods: statistical - stars: oscillations
Simbad objects: 1
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