Abstract: The bidiagonal-Frobenius form for
single-input systems is presented. The new form is
a compromise between the bidiagonal canonical
form introduced by Policastro (1980) and the classical
Frobenius one. It can be employed in the
state-feedback pole-assignment problem, with the
advantage that it requires neither the computation
of the system eigenvalues as the bidiagonal form
does, nor the characteristic polynomial coefficient
evaluation as necessary using the Frobenius form.
The final result is obtained using only the desired
eigenvalues, and the coefficients of the feedback
vector are given directly from the bidiagonal-
Frobenius form without any computation.