Liquid crystal phased array beam deflection control with triple-step method

被引：0
作者：
Wang, Zishuo [1 ]
Wang, Chunyang [1 ,2 ]
Liang, Shuning [1 ]
Wang, Zeng [2 ]
机构：
[1] Changchun Univ Sci & Technol, Sch Elect & Informat Engn, Changchun 130022, Peoples R China
[2] Xian Technol Univ, Inst Informat Percept & Control, Xian 710021, Peoples R China
来源：
2021 PROCEEDINGS OF THE 40TH CHINESE CONTROL CONFERENCE (CCC) | 2021年
关键词：
Liquid crystal phased array; Beam deflection control; System identification; Triple-step method;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper proposes a triple-step control method to achieve rapid, accurate, and stable beam deflection of a liquid crystal phased array (LCPA). The LCPA model is obtained with a system identification method, and a triple-step method controller is designed that comprises three parts: quasi-steady state control, reference feedforward control and error feedback control. Among them, the quasi-steady state control is used to improve the system's response speed and the accuracy of control; the reference feedforward control is used to improve the system's tracking performance; and the error feedback control is used to reduce the errors caused by modeling deviation and external disturbance. The controller has a simple structure, and each control step has a clear meaning. The system performance is analyzed with step response test, tracking performance test and robustness test. The results show that the LCPA beam deflection system with the triple-step method has a rapid response speed, high control accuracy, good tracking performance and strong robustness.
引用
收藏
页码：2520 / 2525
页数：6
相关论文
共 16 条
[1]   Design and simulation of single-electrode liquid crystal phased arrays [J].
Bellini, B. ;
Geday, M. A. ;
Bennis, N. ;
Spadlo, A. ;
Quintana, X. ;
Oton, J. M. ;
Dabrowski, R. .
OPTO-ELECTRONICS REVIEW, 2006, 14 (04) :269-273
[2]  
Du Shengping, 2017, APPL OPTICS, V38, p581
[3]  
Fu Q, 2012, Chinese Optics, V5, P116
[4]   Position Control of Electric Clutch Actuator Using a Triple-Step Nonlinear Method [J].
Gao, Bingzhao ;
Chen, Hong ;
Liu, Qifang ;
Chu, Hongqing .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2014, 61 (12) :6995-7003
[5]  
Han X.Q., 2010, AERONAUT SCI FUND, V10, P65
[6]   Numerical optimization of the performance of nematic liquid crystal optical phased arrays [J].
Harris, S .
ADVANCED WAVEFRONT CONTROL: METHODS, DEVICES, AND APPLICATIONS, 2003, 5162 :157-171
[7]   Beam steering approach for high-precision spatial light modulators [J].
Kong, Lingjiang ;
Zhu, Ying ;
Song, Yan ;
Yang, Jianyu .
CHINESE OPTICS LETTERS, 2010, 8 (11) :1085-1089
[8]   Liquid crystal based non-mechanical beam tracking technology [J].
Lin, Yixiang ;
Ai, Yong ;
Shan, Xin ;
Liu, Min .
OPTICS AND LASER TECHNOLOGY, 2017, 91 :103-107
[9]   High acceleration motion control based on a time-domain identification method and the disturbance observer [J].
Liu, Chao ;
Wu, Jianhua ;
Liu, Jia ;
Xiong, Zhenhua .
MECHATRONICS, 2014, 24 (06) :672-678
[10]  
Orzechowski P K, 2008, AM CONTR C
12