Scilab 6.0.2
Please note that the recommended version of Scilab is 2025.0.0. This page might be outdated.
See the recommended documentation of this function
fspec
spectral factorization of continuous time dynamical systems
Syntax
gm=fspec(g)
Arguments
- g
a continuous time linear dynamical system.
- gm
a continuous time linear dynamical system.
Description
returns gm with gm and gm^-1 stable such that:
g = gtild(gm)*gm
gtild(gm) returns a state-space representation of gm(-s)'.
g is inversible.
Imaginary-axis poles are forbidden.
gtild(g)=g (poles and zeros of g are symmetric wrt imaginary axis).
g(inf) is positive definite.
Examples
a=-1000; b=5; c=5; d=5; sl=syslin('c',a,b,c,d); fspec(sl)
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