How can one accomplish a H∞ tuning of fixed-structure controllers using the command "hinfstruct" for a DISCRETE system.

In input Arguments description of "hinfstruct" one can see that the input argument CL0 could be continous or discrete

https://www.mathworks.com/help/robust/ref/hinfstruct.html#

"CL0 can be a continuous-time or discrete-time model. In discrete time, the sample time must be specified (Ts ≠ –1)"

unfortunatly if I use it for discrete system I get this error

"Error using

DynamicSystem/hinfstruct (line

153)

The "hinfstruct" command only

handles continuous-time models

without delays"

could anyone help me ?

I am using MATLAB R2015b

Answer 1

[Paresh yeole]

It is because of MATLAB version.

For 2015b,

The documentation page for hinfstruct is:

https://www.mathworks.com/help/releases/R2015b/robust/ref/hinfstruct.html

[abd alghafer hani salah]

Okay thank you very much for your answer