An Error Analysis of Power Spectra
Abstract
Summary. An expression is derived for the uncertainty in the Fourier power spectrum due to noise present in the data. We consider both series with Poisson-distributed noise as well as with normal-distributed noise. The expressions for the errors involve only the power spectrum itself and they can be readily generalized to arbitrarily distributed noise. A working example is discussed. Key words: error analysis - power spectra - Fourier transform
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- March 1976
- Bibcode:
- 1976A&A....47..449H