A general solution to the output feedback eigenvalue-assignment problem

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Abstract
This paper investigates the problem of determining a general family of output feedback matrices K which drive the eigenvalues of a controllable and observable linear time-invariant system to desired prespecified positions. The approach followed is based on the concept of making the closed-loop system matrix A + BKC similar to another matrix H of the same dimensions which possesses the desired closed-loop eigenvalues. This approach reduces the problem of determining a general family of K's to that of solving a linear set of equations. In addition, necessary conditions are established for stabilizing and arbitrarily assigning all eigenvalues by output feedback.

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