光学 精密工程, 2016, 24 (1): 187, 网络出版: 2016-03-22  

双目标跟踪的三维信息非线性变结构控制

Variable structure control for three-dimensional information of double targets
作者单位
1 中国科学院 长春光学精密机械与物理研究所, 吉林 长春 130033
2 长春工业大学 电气与电子工程学院, 吉林 长春 130012
摘要
采用传统的单Bang-Bang控制的光电设备进行精定位时, 系统放大倍数为无穷大, 所以系统不易稳定。本文分析了单Bang-Bang控制的不足, 提出了一种变结构最优控制方法。该方法在粗跟踪时用Bang-Bang控制, 在进入小偏差范围内切换为线性控制。在线性控制时, 根据不同调节器的的不同特点, 提出了红外一阶捕获, 红外二阶跟踪的策略, 并同时给出了Bang-Bang控制和线性控制的切换准则, 红外一阶捕获和红外二阶跟踪的切换准则。实验显示, 采用提出的方法光电设备的90°双目标定位能力在2.3 s左右, 比传统方法缩短了近1 s, 快速性大大提高。另外, 利用激光测距机可以给出舷角相差90°的双目标三维信息数据率为0.45 Hz, 提高了双目标时系统的光电对抗能力。
Abstract
When traditional Bang-Bang control in optoelectronic equipment is used in fine position of double-targets, the system is difficult to be stabilized because of its amplifying coefficient in infinity. This paper analyzes shortages of the Bang-Bang control, and proposes a kind of variable structure control, namely the coarse tracking algorithm based on the Bang-Bang control. It uses Bang-Bang control in the coarse tracking and switches it into linear control in a small deviation range. In the linear control, the strategies of infrared first-order capturing and infrared second-order tracking are proposed depending on characteristics of different regulators, and switching guidelines for the Bang-Bang control and linear control, and the infrared first-order capturing and infrared second-order tracking are given. The experiments show the proposed method makes the photoelectric equipment spend around 2.3 s in 90° back and forth position, which is shorter nearly 1 s than that of traditional method. Meanwhile, the laser rangefinder gives the rate of three-dimensional information to be 0.45 Hz, and it improves the optoelectric countmeasuring ability of the system for double targets.

李焱, 张恩东, 周俊鹏. 双目标跟踪的三维信息非线性变结构控制[J]. 光学 精密工程, 2016, 24(1): 187. LI Yan, ZHANG En-dong, ZHOU Jun-peng. Variable structure control for three-dimensional information of double targets[J]. Optics and Precision Engineering, 2016, 24(1): 187.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!