光电跟踪系统快速捕获时间最优滑模控制技术

发布时间：2018-02-26 06:29

本文关键词： 捕获时间最优滑模控制时间最优控制滑模控制　出处：《光学精密工程》2017年01期 　论文类型：期刊论文

【摘要】：针对光电跟踪系统目标的快速捕获过程,本文提出了时间最优滑模控制方法。该控制的滑模面函数为时间最优控制系统状态最优运动轨迹,保证系统状态变量沿着最优轨迹滑动;设计相应的指数趋紧率,使状态变量快速平稳趋近滑模面。以180°、90°、60°阶跃信号为捕获目标进行仿真与实验研究,实验结果为时间最优滑模控制调节时间比时间最优控制和滑模控制分别减小了约43.66%、59.67%,超调量为0,稳态波动量为0,稳态误差减小了约为44.94%和62.34%,与仿真结果相吻合。结果表明该方法调节时间短,超调小,稳态值平稳,稳态误差小,鲁棒性强等优点适合应用于光电跟踪系统目标快速捕获,具有重要的研究与应用价值。
[Abstract]:In this paper, a time optimal sliding mode control method is proposed for fast target acquisition of optoelectronic tracking system. The sliding mode surface function of the control is the state optimal motion trajectory of the time optimal control system. The state variables of the system are guaranteed to slide along the optimal trajectory, the corresponding exponential tightening rate is designed to make the state variables rapidly and steadily approach the sliding mode surface, and the simulation and experimental research are carried out with the step signal of 180 掳~ 90 掳~ (60 掳) as the capture target. The experimental results show that the adjusting time of time optimal sliding mode control is about 43.66 59.67 smaller than that of time optimal control and sliding mode control, the overshoot is 0, the steady state fluctuation is 0, and the steady state error is reduced by about 44.94% and 62.34 respectively, which is in agreement with the simulation results. The result shows that the adjustment time of this method is short. The advantages of small overshoot, stable steady-state value, small steady-state error and strong robustness are suitable for fast target acquisition in optoelectronic tracking system, which has important research and application value.
【作者单位】：长春工业大学电气与电子工程学院;中国科学院长春光学精密机械与物理研究所激光与物质相互作用国家重点实验室;长光卫星技术有限公司;
【基金】：国家863高技术研究发展计划资助项目(No.y5813nq150)
【分类号】：TM921.54

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