The Annals of Probability

The Maximum of the Periodogram of a Non-Gaussian Sequence

Richard A. Davis and Thomas Mikosch

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Abstract

It is a well-known fact that the periodogram ordinates of an iid mean-zero Gaussian sequence at the Fourier frequencies constitute an iid exponential vector, hence the maximum of these periodogram ordinates has a limiting Gumbel distribution. We show for a non-Gaussian iid mean-zero, finite variance sequence that this statement remains valid. We also prove that the point process constructed from the periodogram ordi-nates converges to a Poisson process. This implies the joint weak convergence of the upper order statistics of the periodogram ordinates. These results are in agreement with the empirically observed phenomenon that various functionals of the periodogram ordinates of an iid finite variance sequence have very much the same asymptotic behavior as the same functionals applied to an iid exponential sample.

Article information

Source
Ann. Probab., Volume 27, Number 1 (1999), 522-536.

Dates
First available in Project Euclid: 29 May 2002

Permanent link to this document
https://projecteuclid.org/euclid.aop/1022677270

Digital Object Identifier
doi:10.1214/aop/1022677270

Mathematical Reviews number (MathSciNet)
MR1681157

Zentralblatt MATH identifier
1073.62556

Subjects
Primary: 62M15: Spectral analysis
Secondary: 60F05: Central limit and other weak theorems 60G55: Point processes 60G70: Extreme value theory; extremal processes

Keywords
Periodogram maximum order statistics point process Poisson process

Citation

Davis, Richard A.; Mikosch, Thomas. The Maximum of the Periodogram of a Non-Gaussian Sequence. Ann. Probab. 27 (1999), no. 1, 522--536. doi:10.1214/aop/1022677270. https://projecteuclid.org/euclid.aop/1022677270


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  • FORT COLLINS, COLORADO 80523-1877 UNIVERSITY OF GRONINGEN E-MAIL: rdavis@stat.colostate.edu NL-9700 AV GRONINGEN THE NETHERLANDS