摘要
转台精度直接影响整个光电跟踪系统的跟踪精度。以光电跟踪系统的方位轴为例,采用电流环、速度环、位置环三环控制算法实现控制。介绍了三环控制算法的分析与设计方法,并针对实际工程中出现的非线性摩擦力矩影响跟踪精度的问题,采用前馈补偿的方法提高精度,并给出了仿真实验结果。
Turntable＇ s precision has a tremendous impact on the tracking accuracy of the optoelectronic tracking system. Taking the azimuth axis into account, the control strategy is 3-loop structure, including current loop, speed loop and position loop. Then the design method is presented. Because of the nonlinear effect of the friction moment, the turntable＇ s accuracy is affected, so the feedforward controller to compensate the effect of friction moment is designed. Finally some tracking results are presented.
出处
《测控技术》
CSCD
北大核心
2009年第7期49-51,53,共4页
Measurement & Control Technology
关键词
转台
跟踪精度
三环结构
摩擦力矩
前馈
turntable
tracking accuracy
3-loop structure
friction moment
feedforward
