The optional input aretype determines the method used by ARE solver aresolv . ARE's and solve them via daresolv . Note that in contrast to the H case, the bilinear transform technique does not apply in the H 2 case. This is because the H 2 norm, unlike the H norm, is not invariant under bilinear transformation.
Examples See the Tutorial chapter for design examples and demonstrations.
Especially, see the comparison between H 2 synthesis and H synthesis in the Fighter H 2 and H Design Example in the Tutorial section. 2 D 11 must be zero, otherwise the H 2 optimal control problem is ill-posed. If a nonzero D 11 is given, the algorithm ignores it and computes the H 2 optimal control as if D 11 were zero. 3 D 12 and must both have full column rank. Cont r., AC-26, pp.