Limit theorems for filtered long-range dependent random fields
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This article investigates general scaling settings and limit distributions of functionals of filtered random fields. The filters are defined by the convolution of non-random kernels with functions of Gaussian random fields. The case of long-range dependent fields and increasing observation windows is studied. The obtained limit random processes are non-Gaussian. Most known results on this topic give asymptotic processes that always exhibit non-negative auto-correlation structures and have the self-similar parameter H∈(1/2,1). In this work we also obtain convergence for the case H∈(0,1/2) and show how the Hurst parameter H can depend on the shape of the observation windows. Various examples are presented.
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