Control of longitudinal dynamics in the ReentryPhase of a Reusable Launch Vehicle

[摘要] This paper presents the control of the longitudinal dynamics of a reusable launch vehicle in its re-entry phase. The control of longitudinal dynamics mainly consists of the pitch angle control. Here the pitch is controlled using an Linear Quadratic Regulator controller. The feedback LQR controller is compared with a classical PID controller. The launch vehicle model is controlled using the designed LQR controller.

[关键词] Euler Angles;Linear Quadratic Regulator;Reusable Launch Vehicle.