Norm of linear model
n = norm(sys)
n =
norm(sys,2)
n = norm(sys,inf)
[n,fpeak]
= norm(sys,inf)
[...] = norm(sys,inf,tol)
or n
= norm(sys
)
return the H_{2} norm of
the linear dynamic system model n
=
norm(sys
,2)sys
.
returns
the H_{∞} norm of n
= norm(sys
,inf)sys
.
[
also returns the frequency n
,fpeak
]
= norm(sys
,inf)fpeak
at
which the gain reaches its peak value.
[...] = norm(
sets
the relative accuracy of the H_{∞} norm
to sys
,inf,tol
)tol
.

Continuous or discretetime linear dynamic system model. 

Positive real value setting the relative accuracy of the H_{∞} norm. Default: 0.01 

H_{2} norm or H_{∞} norm of
the linear model If 

Frequency at which the peak gain of 
norm
first converts sys
to
a state space model.
norm
uses the same algorithm as covar
for the H_{2} norm.
For the H_{∞} norm, norm
uses
the algorithm of [1]. norm
computes
the H_{∞} norm (peak
gain) using the SLICOT library. For more information about the SLICOT
library, see http://slicot.org.
[1] Bruisma, N.A. and M. Steinbuch, "A Fast Algorithm to Compute the H_{∞}Norm of a Transfer Function Matrix," System Control Letters, 14 (1990), pp. 287293.