dear experts
i have estimated state space model form input output data using system identification, now plz guide how to design LQR controller
Simulink has an LQR block you can take advantage of (keep in mind it is an infinite-horizon one).
https://www.mathworks.com/help/control/ref/lqr.html
Dear Chandar Kumar ,
This is generally a topic taught to M1 students in robotics & control engineering with emphasis on research.
There are a lot of courses, tutorials, videos on how to design LQR controllers. Just google it and you will find a lot of results.
Here, for example, is a link to a Stanford University Lecture:
https://stanford.edu/class/ee363/lectures/dlqr.pdf
Chandar Kumar This tutorial might be helpful: https://www.youtube.com/watch?v=E_RDCFOlJx4