TY - GEN
T1 - Slepianwavelet variances for regularly and irregularly sampled time series
AU - Mondal, Debashis
AU - Percival, Donald B.
PY - 2012
Y1 - 2012
N2 - We discuss approximate scale-based analysis of variance for Gaussian time series based upon Slepian wavelets. These wavelets arise as eigenfunctions of an energy maximization problem in a pass band of frequencies. Unlike the commonly used Daubechies wavelets, Slepian wavelets have the ability to accommodate both regularly and irregularly sampled data. For regularly sampled Gaussian time series, we derive statistical theory for Slepian-based wavelet variances and show that it is comparable to Daubechies-based variances. For irregularly sampled time series data, we derive a corresponding statistical theory for Slepian-based wavelet variances. We demonstrate its use on X-ray fluctuations from a binary star system and on a light curve from the variable star Z UMa.
AB - We discuss approximate scale-based analysis of variance for Gaussian time series based upon Slepian wavelets. These wavelets arise as eigenfunctions of an energy maximization problem in a pass band of frequencies. Unlike the commonly used Daubechies wavelets, Slepian wavelets have the ability to accommodate both regularly and irregularly sampled data. For regularly sampled Gaussian time series, we derive statistical theory for Slepian-based wavelet variances and show that it is comparable to Daubechies-based variances. For irregularly sampled time series data, we derive a corresponding statistical theory for Slepian-based wavelet variances. We demonstrate its use on X-ray fluctuations from a binary star system and on a light curve from the variable star Z UMa.
UR - https://www.scopus.com/pages/publications/84896636646
U2 - 10.1007/978-1-4614-3520-4_38
DO - 10.1007/978-1-4614-3520-4_38
M3 - Conference contribution
AN - SCOPUS:84896636646
SN - 9781461435198
T3 - Lecture Notes in Statistics
SP - 403
EP - 418
BT - Statistical Challenges in Modern Astronomy V
PB - Springer Science and Business Media, LLC
T2 - 5th Statistical Challenges in Modern Astronomy Symposium, SCMA 2011
Y2 - 13 June 2011 through 15 June 2011
ER -