V. N. Fomin

Optimal Filtering (eBook, PDF)

Volume II: Spatio-Temporal Fields

• Format: PDF

Produktbeschreibung

In this volume the investigations of filtering problems, a start on which has been made in [55], are being continued and are devoted to theoretical problems of processing stochastic fields. The derivation of the theory of processing stochastic fields is similar to that of the theory extensively developed for stochastic processes ('stochastic fields with a one-dimensional domain'). Nevertheless there exist essential distinctions between these cases making a construction of the theory for the multi-dimensional case in such a way difficult. Among these are the absence of the notion of the 'past-future' in the case of fields, which plays a fundamental role in constructing stochastic processes theory. So attempts to introduce naturally the notion of the causality (non-anticipativity) when synthesising stable filters designed for processing fields have not met with success. Mathematically, principal distinctions between multi-dimensional and one-dimensional cases imply that the set of roots of a multi-variable polyno mial does not necessary consist of a finite number of isolated points. From the main theorem of algebra it follows that in the one-dimensional case every poly nomial of degree n has just n roots (considering their multiplicity) in the com plex plane. As a consequence, in particular, an arbitrary rational function ¢(.

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Produktdetails

• Verlag: Springer Netherlands
• Seitenzahl: 359
• Erscheinungstermin: 6. Dezember 2012
• Englisch
• ISBN-13: 9789401146913
• Artikelnr.: 43985546

Inhaltsangabe

1 Introduction to estimation and filtering theory.- 1.1 Basic notions of probability theory.- 1.2 Introduction to estimation theory.- 1.3 Examples of estimation problems.- 1.4 Estimation and filtering: similarity and distinction.- 1.5 Basic notions of filtering theory.- 1.6 Appendix: Proofs of Lemmas and Theorems.- 2 Optimal filtering of stochastic processes in the context of the Wiener-Kolmogorov theory.- 2.1 Linear filtering of stochastic processes.- 2.2 Filtering of stationary processes.- 2.3 Recursive filtering.- 2.4 Linear filters maximizing a signal to noise ratio.- 2.5 Appendix: Proofs of Lemmas and Theorems.- 2.6 Bibliographical comments.- 3 Abstract optimal filtering theory.- 3.1 Random elements.- 3.2 Linear stable estimation.- 3.3 Resolution space and relative finitary transformations.- 3.4 Extended resolution space and linear transformations in it.- 3.5 Abstract version of the Wiener-Kolmogorov filtering theory.- 3.6 Optimal estimation in discrete resolution space.- 3.7 Spectral factorization.- 3.8 Optimal filter structure for discrete time case.- 3.9 Abstract Wiener problem.- 3.10 Appendix: Proofs of Lemmas and Theorems.- 3.11 Bibliographical comments.- 4 Nonlinear filtering of time series.- 4.1 Statement of nonlinear optimal filtering problem.- 4.2 Optimal filtering of conditionally Gaussian time series.- 4.3 Connection of linear and nonlinear filtering problems.- 4.4 Minimax filtering.- 4.5 Proofs of Lemmas and Theorems.- 4.6 Bibliographical comments.- References.- Notation.