Title

Real orthogonal polynomials in frequency analysis

Authors

Authors

C. F. Bracciali; X. Li;A. S. Ranga

Comments

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Abbreviated Journal Title

Math. Comput.

Keywords

frequency analysis problem; frequency estimation; orthogonal; polynomials; Szego polynomials; para-orthogonal polynomials; quadrature; SZEGO POLYNOMIALS; UNIT-CIRCLE; CONTINUED FRACTIONS; QUADRATURE; ALGORITHM; ZEROS; Mathematics, Applied

Abstract

We study the use of para-orthogonal polynomials in solving the frequency analysis problem. Through a transformation of Delsarte and Genin, we present an approach for the frequency analysis by using the zeros and Christoffel numbers of polynomials orthogonal on the real line. This leads to a simple and fast algorithm for the estimation of frequencies. We also provide a new method, faster than the Levinson algorithm, for the determination of the reflection coefficients of the corresponding real Szego polynomials from the given moments.

Journal Title

Mathematics of Computation

Volume

74

Issue/Number

249

Publication Date

1-1-2004

Document Type

Article

Language

English

First Page

341

Last Page

362

WOS Identifier

WOS:000224383800016

ISSN

0025-5718

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