Wavelet Analysis of Solar Diameter Measurements Performed at Calern Observatory Astrolabe
Authors: Moussaoui, R.; Irbah, A.
Source: Astrophysics and Space Science, Volume 273, Numbers 1-4, September 2000 , pp. 25-33(9)
Abstract:Since 1975, a visual program of solar diameter measurement is pursued at Calern Observatory (France). These observations allowed to put in evidence variations in solar data. Several studies were developed in order to analyze the data using appropriate me thods (deconvolution of the observation window function and least square fits) (Moussaoui et al., 1999). We present in this work a time-frequency study of the found harmonic terms. It is developed using the wavelet transform. The obtained results are presented and discussed.
Document Type: Regular Paper
Affiliations: C.R.A.A.G – Observatoire d'Alger, BP 63, Bouzareah, Alger, Algeria
Publication date: September 2000