obs_gram(1)

NAME
obs_gram - observability grammian

CALLING SEQUENCE
[Go]=obsv_gram(A,C [,dom])
[Go]=obsv_gram(sl)

PARAMETERS

A,C : real matrices (of appropriate dimensions)

dom : string ("d' or "c" (default value))

sl  : syslin list

DESCRIPTION
Observability gramian of the pair (A,C) or linear system sl (syslin list). dom is the domain which can be

"c" : continuous system (default)

"d" : discrete system

                  /+inf                             ---+inf
                  [  A't    At                      \   k      k
             Go = | e  C'C e   dt       or      Go = > A' C'C A
                  ]                                 /
                 /0                                 ---0

SEE ALSO
 contrss, ctr_gram, obsvss, obs_mat