The spacecraft burns hydrazine fuel mixed with an oxidizer, nitrogen tetroxide, to power its main engine and thrusters for in ...

Abstract: The fuel servo actuator regulates fuel flow and nozzle area, and dual electrohydraulic servo valves usually provide redundancy for the aero-engine control system. However, time-delay in the ...

Abstract: In this paper, we consider the infinite horizon optimal control problem for nonlinear systems. Under the conditions of controllability of the linearized system around the origin, and ...