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Cooperative guidance law based on super-twisting observer for target maneuvering
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To solve the problem that multiple missiles should simultaneously attack unmeasurable maneuvering targets,a guidance law with temporal consistency constraint based on the super-twisting observer is proposed.Firstly,the relative motion equations between multiple missiles and targets are established,and the topological model among multiple agents is considered.Secondly,based on the temporal consistency constraint,a cooperative guidance law for simultaneous arrival with finite-time convergence is derived.Finally,the unknown target maneuver-ing is regarded as bounded interference.Based on the second-order sliding mode theory,a super-twisting sliding mode observer is devised to observe and track the bounded interfer-ence,and the stability of the observer is proved.Compared with the existing research,this approach only needs to obtain the sliding mode variable which simplifies the design process.The simulation results show that the designed cooperative guidance law for maneuvering targets achieves the expected effect.It ensures successful cooperative attacks,even when confronted with strong maneuvering targets.
cooperative guidancesuper-twistingtarget maneu-verfinite time convergence
GAO Mengjing、YAN Tian、HAN Bingjie、CHENG Haoyu、FU Wenxing、HAN Bo
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Unmanned System Research Institute,Northwestern Polytechnical University,Xi'an 710072,China
AVIC Xi'an Aeronautics Computing Technique Research Institute,Xi'an 710072,China
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