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Guarding a Non-Maneuverable Translating Line with an Attached Defender

2022/09/19 by Goutam Das, Michael Dorothy, Das, Goutam +5
Engineering · #Computational Fluid Dynamics and Aerodynamics #FOS: Electrical engineering #Guidance and Control Systems #Systems and Control (eess.SY) #electronic engineering #information engineering

paper · pdf · doi:10.48550/arxiv.2209.09318

openalex publication_date 2022/09/19 · openalex created_date 2022/09/23 · openalex updated_date 2026/07/28

Abstract

In this paper we consider a target-guarding differential game where the defender must protect a linearly translating line-segment by intercepting an attacker who tries to reach it. In contrast to common target-guarding problems, we assume that the defender is attached to the target and moves along with it. This assumption affects the defenders' maximum speed in inertial frame, which depends on the target's direction of motion. Zero-sum differential game of degree for both the attacker-win and defender-win scenarios are studied, where the payoff is defined to be the distance between the two agents at the time of game termination. We derive the equilibrium strategies and the Value function by leveraging the solution for the infinite-length target scenario. The zero-level set of this Value function provides the barrier surface that divides the state space into defender-win and attacker-win regions. We present simulation results to demonstrate the theoretical results.

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