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International Journal of Aerospace Engineering
Volume 2018 (2018), Article ID 4126807, 15 pages
https://doi.org/10.1155/2018/4126807
Research Article

Cooperative Intercept Guidance of Multiple Aircraft with a Lure Role Included

1Xi’an Research Institute of Hi-Tech, Xi’an 710025, China
2Science and Technology on Electro-optical Control Laboratory, Luoyang 741000, China

Correspondence should be addressed to Yang Guo; moc.liamxof@028gnayoug

Received 4 September 2017; Revised 17 January 2018; Accepted 21 January 2018; Published 10 April 2018

Academic Editor: Franco Bernelli-Zazzera

Copyright © 2018 Shuai Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

When threatened by a pursuer, an evading aircraft launches two defenders to accomplish a cooperative evasion, constituting a four-aircraft interception engagement. Under the assumption that the pursuing aircraft adopts the augmented proportional guidance law and first-order dynamics, a cooperative intercept mathematical model with an intercept angle constraint is established, allowing for the cooperative maneuvering of the evader. Based on the differential linear matrix inequality (DLMI), a controller design method of input and output finite time stability (IO-FTS) is proposed and applied to the aircraft’s cooperative intercept scenario. A cooperation performance analysis is carried out for two cases: (1) two defenders intercept the pursuer with various intercept angle constraints, and (2) the evader acts in a lure role to cooperate with two defenders. The simulation results indicate that the proposed method of controller design has the ability to guarantee that the two defenders intercept the pursuer at the preassigned intercept angles. The cooperative intercept scenario with a lure role is shown to be a very effective method for reducing the maximum required acceleration for defenders, which confirms the availability and advantage of cooperation. The strong adaptability and robustness of the cooperative guidance law with respect to various initial launch conditions is also verified.