ON ZERO LOCATIONS OF PREDICTOR POLYNOMIALS

Predictor polynomials are often used in linear prediction methods main ly for extracting properties of physical systems which are described b y time series. The aforementioned properties are associated with a few zeros of large polynomials and for this reason the zero locations of those polynomials must be analyzed. We present a linear algebra approa ch for determining the zero locations of predictor polynomials, which enables us to generalize some early results obtained by Kumaresan in t he signal analysis field. We also present an analysis of zero location s for time series having multiple zeros. (C) 1997 by John Wiley & Sons , Ltd.