This function compute the gains for recuded order Darouach observer of 1995 [1]
[Pi,L, H,M, F,B1]=redobsv95(E,A,B,C)
Continuos matrices of descriptor system. E singular
Gains matrices of reduced Darouach Observer
Auxliar matrix for simulation. It is results from the QR r.se transformation
Given a Descriptor system in the form dxEdt=Ax+Bu y =Cx+Du if the conditions in [1] are satisfied, then exist a full order observer dzdt=Phi z(t) + L y(t) + H u(t) xe=M u(t) + F y(t) xe is the stiamted output, u is the input. and y(t)=[ -B1u(t) y*(t) ] y*(t)=Cx(t) For more information consult the reference. Observability conditions are tested inside the function
[1] M. Darouach and M. Boutayeb, (1995). Design of Observer for Descriptor Form. IEEE Transactions on Automatic Control. Vol. 70, pp. 1323-1327