Coordinated Standoff Flights for Multiple UAVs Via Second-Order Sliding Modes
This study focuses on guidance associated with coordinated standoff flight for fixed-wing uninhabited aerial vehicles against a fixed or slowly moving ground target. A novel guidance law is first proposed for a single standoff-flying vehicle. Although the proposed guidance law is quite simple, it can incorporate desired properties such that the guidance law provides smooth transfer from an approach to a standoff flight. Furthermore, the proposed guidance law along with a proposed guidance-related equation guarantees a pre-specified directional (right or left) turn at the final phase of the standoff flight. The structure of the proposed guidance law forms a sliding surface for a sliding mode approach. Coordination with other UAVs is made with a decentralized velocity control that avoids central computing. A second–order sliding mode (SOSM) is selected to develop guidance schemes. The potential of the proposed method is demonstrated through multiple UAVs' coordinated standoff flight guidance simulation where each UAV keeps a standoff position around a stationary target or a slowly moving target with coordination.
T. Yamasaki et al., "Coordinated Standoff Flights for Multiple UAVs Via Second-Order Sliding Modes," Proceedings of the 2015 AIAA Guidance, Navigation, and Control Conference, AIAA SciTech Forum (2015, Kissimmee, FL), American Institute of Aeronautics and Astronautics (AIAA), Jan 2015.
The definitive version is available at https://doi.org/10.2514/6.2015-1770
2015 AIAA Guidance, Navigation, and Control Conference, MGNC 2015 (2015: Jan. 5-9, Kissimmee, FL)
Mechanical and Aerospace Engineering
Keywords and Phrases
Aviation; Fixed wings; Flight simulators; Target tracking; Tracking (position); Flying vehicles; Moving ground targets; Moving targets; Multiple UAVs; Second order sliding modes; Sliding surface; Stationary targets; Uninhabited aerial vehicle; Air navigation
International Standard Book Number (ISBN)
Article - Conference proceedings
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