A characterization of minimal square spectral factors

1 February 1982

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Automatic Control

Vol. 27 (1) , 122-127
https://doi.org/10.1109/tac.1982.1102861

Abstract

Two different well-known approaches to the spectral factorization problem \Phi(s)=W(s)W'(-s) are connected together by relating the geometric properties of the solution set of the underlying algebraic Riccati equation to the structure of the "all-pass" factor of each minimal solution W(s) .

Keywords

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