Journal of Applied Optics, Volume. 46, Issue 4, 750(2025)
Optimization method of fast steering mirror scanning control performance in laser radar
Figures & Tables(12)
Fig. 2. Composition and principle of voice coil actuator fast steering mirror
Fig. 4. Block diagram of optimal control by delay compensated linear quadratic regulator
Fig. 6. Step response results of delay compensated linear quadratic regulator optimal control and PID
Fig. 8. Scanning results and tracking errors of delay compensated linear quadratic regulator optimal control and PID
Fig. 9. Overall scanning results of delay compensated linear quadratic regulator optimal control and PID
Table 1. Mechanical and electrical parameters of voice coil actuator fast steering mirror
View tableView in ArticleTable 1. Mechanical and electrical parameters of voice coil actuator fast steering mirror
参数 名称 数值 R 电机线圈电阻/Ω 4.72 C 电磁扭矩常数/N·m·A−1 0.05 Kf 电机反电动势系数/V·s·rad−1 0.05 L 电机回路电感/H 1.04×10−4 K 柔性铰链弹性系数/N·m·rad−1 1.146 J 转动惯量/kg·m2 1.965 06×10−7 f 阻尼系数/N·s·rad−1 0.0027
Table 2. Step time of delay compensated linear quadratic regulator optimal control and PID
View tableView in ArticleTable 2. Step time of delay compensated linear quadratic regulator optimal control and PID
控制方法 阶跃时间/ms 延时补偿线性二次型最优控制 4.84 PID 12.68
Table 3. Tracking errors of delay compensated linear quadratic regulator optimal control and PID
View tableView in ArticleTable 3. Tracking errors of delay compensated linear quadratic regulator optimal control and PID
控制方法 X轴均方根 误差/mrad Y轴均方根 误差/mrad 延时补偿线性二次型最优控制 1.911 5 0.577 7 PID 3.894 3 0.825 1
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Wen HAN, Runqiu XIA, Qingshan CHEN. Optimization method of fast steering mirror scanning control performance in laser radar[J]. Journal of Applied Optics, 2025, 46(4): 750
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Received: Aug. 2, 2024
Accepted: --
Published Online: Sep. 16, 2025
The Author Email: Runqiu XIA (夏润秋)
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