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On the factorization of rational matrices

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1 Author(s)

Many problems in electrical engineering, such as the synthesis of linear n ports and the detection and filtration of multivariable systems corrupted by stationary additive noise, depend for their successful solution upon the factorization of a matrix-valued function of a complex variable p . This paper presents several algorithms for affecting such decompositions for the class of rational matrices G(p) , i.e., matrices whose entries are ratios of polynomials in p . The methods employed are elementary in nature and center around the Smith canonic form of a polynomial matrix. Several nontrivial examples are worked out in detail to illustrate the theory.

Published in:

IRE Transactions on Information Theory  (Volume:7 ,  Issue: 3 )