The Design of Sliding Decoupling Controller for AIR-TO-AIR MISSILE at High Angle of Attack Based on DDFC

Jing Guo Zhang; Ya Fei Ren; Xu Tao Luo; Xiao Geng Liang

doi:10.4028/www.scientific.net/AMR.546-547.928

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 546-547The Design of Sliding Decoupling Controller for...

The Design of Sliding Decoupling Controller for AIR-TO-AIR MISSILE at High Angle of Attack Based on DDFC

Abstract:

The asymmetric vortex and vortex breakdown lead to strong inter-channel coupling and non-linear characteristics when air-to-air missile flies at high angle of attack. Firstly, this essay establishes a coupling characteristics mathematical model of the missile. And then, it gives a decoupling control method based on DDFC (Direct Dynamics Feedback Compensation) theory. At last, a new decoupling controller is designed combined with sliding variable structure control theory. The simulation shows that the performance of decoupling and command responses of this designed control system is quite good.