高精度雷达天线自抗扰控制技术研究  

Research on ADRC of High Precision Radar Antenna

作　　者：凡国龙[1] 张录健[1] 解旭东[1] 

机构地区：[1]中国电子科技集团公司第三十九研究所,陕西西安710065

出　　处：《无线电通信技术》2017年第3期63-67,共5页Radio Communications Technology

基　　金：国家部委基金资助项目

摘　　要：针对阵风扰动影响高精度雷达天线指向和跟踪性能,提出基于ADRC的阵风扰动补偿设计方案。结合天线速度环数学模型结构,分析了选用ADRC的原因;针对速度环存在时滞,基于Smith输出预估器进行设计,从而使输入到输出之间变成无时滞的惯性环节;对输入指令进行过渡过程预处理、并基于扩张状态观测器和高增益控制器对控制系统分别进行状态观测和控制律设计;仿真分析和工程现场测试表明,基于ADRC可实现对阵风扰动的有效抑制。The pointing and tracking performance of the high precision radar antenna is decreased due to the wind-gust disturb- ance, the ADRC method is used to compensate the wind-gust disturbance. Firstly, according to the structure of antenna velocity loop model,the reason of choosing ADRC is analyzed.Secondly,aiming at the time lag of the speed loop,the speed loop is designed to be the inertia link without delay by the Smith output predictor.Thirdly,the command is preprocessed by the preprocessing method of the transi- tion process,and observation and design of the control system are respectively made based on linear extended state observer （LESO） and high gain controller.Finally, Matlab simulation and engineering field test show that the effective suppression of gust disturbance can be realized by using ADRC.

关 键 词：阵风扰动 自抗扰控制 扩张状态观测器 

分 类 号：TN821[电子电信—信息与通信工程]