The research considers a three agent pursuit-evasion problem in which an attacker pursues to capture a target, while a defender tries to intercept the attacker to save the target. The target-defender team uses MPC to compute their optimal control inputs and attacker is assumed to use conventional missile guidance laws. Perfect knowledge of the attacker states is assumed to be unknown, hence an Extended Kalman Filter (EKF) is used to estimate the state of the attacker. Control laws were designed for a constant and a variable velocity target.
Accepted, American Control Conference 2019.[pdf]