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An omnibus noise filter

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Abstract

A new noise filtering approach, based on flexible least squares (FLS) estimation of an unobserved component local level model, is introduced. The proposed FLS filter has been found to perform well in Monte Carlo analysis, independently of the persistence properties of the data and the size of the signal to noise ratio, ouperforming in general even the Wiener Kolmogorov filter, which, theoretically, is a minimum mean square estimator. Moreover, a key advantage of the proposed filter, relatively to available competitors, is that any persistence property of the data can be handled, without any pretesting, being computationally fast and not demanding, and easy to be implemented as well.

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Authors and Affiliations

  1. Facoltà di Economia, Dipartimento di Scienze Economiche e Metodi Quantitativi, Università del Piemonte Orientale, Via Perrone 18, 28100, Novara, Italy

    Claudio Morana

  2. International Centre for Economic Research (ICER, Torino), Torino, Italy

    Claudio Morana

Authors
  1. Claudio Morana
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Correspondence to Claudio Morana.

Additional information

This paper was partially written when the author was visiting the Department of Economics at Michigan State University. The author gratefully acknowledges funding from the Fulbright Commission and Michigan State University for hospitality. Many thanks to two anonymous referee and the associate editor for very constructive comments.

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Morana, C. An omnibus noise filter. Comput Stat 24, 459–479 (2009). https://doi.org/10.1007/s00180-008-0139-3

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  • DOI: https://doi.org/10.1007/s00180-008-0139-3

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