descriptor to transfer function conversion
S = des2tf(sl) [Bfs, Bis, chis] = des2tf(sl)
list (linear system in descriptor form)
two polynomial matrices
polynomial
rational matrix
Given the linear system in descriptor form i.e.
Sl=list('des',A,B,C,D,E)
, des2tf
converts sl
into
its transfer function representation:
Called with 3 outputs arguments des2tf
returns
Bfs
and Bis
two polynomial matrices, and chis
polynomial such that:
chis
is the determinant of (s*E-A)
(up to a xcative constant);