Abstract
We study the signal extraction problemwhere a smooth signal is to be estimated against a long-range dependent noise. We consider an approach employing local estimates and derive a theoretically optimal (maximum likelihood) filter for a polynomial signal. On its basis, we propose a practical signal extraction algorithm and adapt it to the extraction of quasi-seasonal signals. We further study the performance of the proposed signal extraction scheme in comparison with conventional methods using the numerical analysis and real-world datasets.
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Artemov, A.V. Effective Signal Extraction Via Local Polynomial Approximation Under Long-Range Dependency Conditions. Lobachevskii J Math 39, 309–320 (2018). https://doi.org/10.1134/S1995080218030101
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DOI: https://doi.org/10.1134/S1995080218030101