Integral barrier Lyapunov function-based fixed-time integrated guidance and control with asymmetric field-of-view angle constraints

被引:4
作者
Wei, Shenghui [1 ]
Song, Shenmin [1 ]
机构
[1] Harbin Inst Technol, Ctr Control Theory & Guidance Technol, Harbin 150001, Peoples R China
基金
中国国家自然科学基金;
关键词
Fixed-time; Pre-defined time; Integral barrier Lyapunov function; Field-of-view angle constraint; Integrated guidance and control; IMPACT ANGLE; CONTROL DESIGN; LAW; SEEKER;
D O I
10.1016/j.isatra.2024.06.004
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The missile integrated guidance and control (IGC) problem with seeker's asymmetric field-of-view (FOV) angle constraints is addressed. In the introduced model, the fin deflections controller is used to drive the body line- of-sight angle rate, which avoids the solving and tracking of aerodynamic angles in traditional IGC method. A novel fixed-time convergence virtual input based on the integral barrier Lyapunov function is designed to ensure the asymmetric FOV angle constraints are never violated. The virtual input is tracked by a new proposed pre-defined fixed time controller with adjustable initial convergence speed. The lumped uncertainty including aerodynamic coefficient and target maneuvering is coped by the fixed-time disturbance observer. It is proved that the closed-loop system states are converged to the bounded region in a fixed-time and the asymmetric FOV angle constraints are satisfied. The 6-degree of freedom flight simulations and comparisons verified the advantages of the proposed algorithm.
引用
收藏
页码:183 / 197
页数:15
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