某小型雷达罩电性能测试用高精度天线座设计  

Structure Design of a Precise Miniature Radome Performance Test Pedestal

作　　者：李朝旭[1] 刘晓春 方斌[1] 

机构地区：[1]上海交通大学机械工程学院,上海200240 [2]济南特种结构研究所,山东济南250023

出　　处：《电子机械工程》2007年第2期35-38,42,共5页Electro-Mechanical Engineering

摘　　要：小型雷达罩电性能测试过程要求雷达罩或天线进行高精度(小于3角秒)方位或俯仰运动,相应测试用天线座的设计极具难度。通过对传动链进行合理化设计控制机械系统回差,并在俯仰、方位终端通过高精度光栅编码器形成闭环控制,综合考虑负载特性进行控制策略研究,最终达到系统回差控制。实验结果表明天线座可在±45°范围内实现高精度运动,达到雷达罩测试要求。The electric performance testing of miniature radome requires the radome or antenna carries out high precision motion on azimuth or pitching direction, and it＇s difficult to design this test antenna pedestal. In order to control the total system backlash, this paper rationalizes the drive chains to control the mechanical system backlash and studies the control strategy comprehensively in terms of the characteristics of the load, and closed-loop is formed by setting high precision photoelectrical encoder at terminal on azimuth or pitching direction. The experiment results indicate that the antenna pedestal is able to actual high precision motion between -45°and 45°, which is demanded by radome performance testing.

关 键 词：小型天线座 高精度 全闭环控制 

分 类 号：TN957.2[电子电信—信号与信息处理]