Discrete approximation of stable white noise - Application to spatial linear filtering

Details Discrete approximation of stable white noise - Application to spatial linear filtering Discrete approximation of stable white noise - Application to spatial linear filtering

2009-03-09

arxiv.org/abs/0903.1552v1

Mathematics

Probability

24p

Scientific paper

Motivated by the simulation of stable random fields, we consider the issue of discrete approximations of independently scattered stable noise. Two approaches are proposed: grid approximations available when the underlying space is $\bbR^d$ and shot noise approximations available on more general spaces. Limit theorems stating the convergence of discrete random noises to stable white noise are proved. These results are then applied to study moving average spatial random fields with heavy-tailed innovations and related limit theorems. A second application deals with discrete approximation for Brownian L\'evy motion on the sphere or on the euclidean space.

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