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首页> 外文会议>IFAC Symposium on Information Control Problems in Manufacturing >On the Comparison of Type 1 and Interval Type 2 Fuzzy Logic Controllers Used in a Laser Tracking System
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On the Comparison of Type 1 and Interval Type 2 Fuzzy Logic Controllers Used in a Laser Tracking System

机译：在激光跟踪系统中使用的1型和间隔类型2模糊逻辑控制器的比较

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This study is an extension of our previous researches for a type-1 fuzzy logic controller used in a Laser Tracking System (LTS). In a LTS the control objective is for a laser beam to track a retro-reflecting moving target through adjustment of joint angles and velocities of a two Degrees-Of-Freedom (DOF) tracking gimbals on which tracking mirrors are mounted. This is done based on two types of feedback signals: Distance reading, obtained by a laser interferometer and off-center distance error of the returning laser beam, as measured by a four-quadrant photo-detector. The LTS control system should effectively provide a high-speed and smooth tracking on the target with lowest steady state errors. A complete LTS consists of laser interferometer transducer subsystem, opto-electronic beam steering subsystem, gimbals driving subsystem and the digital control subsystem. As high tracking accuracy and high tracking speed are both vital for LTS operation, a design of a high performance controller is critical. This paper shows that an interval type 2 fuzzy logic controller (IT2FLC) can outperform a type 1 fuzzy logic controller (T1FLC) in such applications. Complete and extensive simulation studies are discussed and analyzed with a performance comparison between a type 1 and an interval type 2 FLC. The advantages of utilizing an IT2FLC over T1FLC to improve the control and tracking performance for a LTS with random noises are confirmed by simulation results.
机译：本研究是我们对激光跟踪系统（LTS）中使用的1型模糊逻辑控制器的研究的延伸。在LTS中，控制目标是用于通过调节安装在其上安装有跟踪镜的两个自由度（DOF）跟踪万向节的接头角度和速度来跟踪反射反射移动目标的激光束。这是基于两种类型的反馈信号来完成：距离读数，由返回激光束的激光干涉仪和偏差误差获得，如通过四象限的光电检测器测量的返回激光束。 LTS控制系统应有效地为目标提供高速和平滑的跟踪，以最低稳态误差。完整的LT由激光干涉仪传感器子系统，光电束转向子系统，万向节驾驶子系统和数字控制子系统组成。随着LTS操作的高跟踪精度和高跟踪速度都是至关重要的，高性能控制器的设计至关重要。本文表明，间隔类型2模糊逻辑控制器（IT2FLC）可以在这种应用中优于1型模糊逻辑控制器（T1FLC）。讨论和分析完整和广泛的模拟研究，并在类型1和间隔2 FLC之间进行性能比较。通过仿真结果确认利用AT2FLC通过T1FLC通过T1FLC进行改善对LTS的控制和跟踪性能。

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