| 一种双通道微波辐射计高精度天线伺服系统 |
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| 引用本文： | 潘国泉. 一种双通道微波辐射计高精度天线伺服系统[J]. 现代电子技术, 2006, 29(20): 9-12 |
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| 作者姓名： | 潘国泉 |
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| 作者单位： | 中国电波传播研究所,山东,青岛,266071 |
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| 摘 要： | 微波辐射计是一种高灵敏度的低噪声宽带微波接收机,双通道微波辐射计扫仰角测量时,主要用于反演大气水汽廓线,为提高测量精度,尤其在低仰角区,要求其天线伺服系统运行平稳并具有较高的定位精度。介绍一种基于单片机控制的高精度天线伺服系统,详细分析其工作原理和定位精度,并阐明步进电机的细分驱动方法。实验结果表明,该系统运行平稳,响应迅速,定位精度高。
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| 关 键 词： | 双通道微波辐射计 天线伺服系统 定位精度 低噪声带宽 |
| 文章编号： | 1004-373X（2006）20-009-04 |
| 收稿时间： | 2006-04-17 |
| 修稿时间： | 2006-04-17 |
A High Accurate Antenna Servo System of Dual-Frequency Microwave Radiometer |
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| PAN Guoquan. A High Accurate Antenna Servo System of Dual-Frequency Microwave Radiometer[J]. Modern Electronic Technique, 2006, 29(20): 9-12 |
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| Authors: | PAN Guoquan |
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| Affiliation: | China Research Institute of Radiowave Propagation,Qingdao,266071 ,China |
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| Abstract: | Microwave radiometer is a kind of wideband receiver with high-sensitivity and low noise,dual-frequency microwave radiometer is applied for the inversion of the atmosphere vapor profile when sweptelevation measuring.In order to improve the measurement accuracy,it is necessary for the antenna servo system,especially in the low elevation,to run stably and locate with high accuracy.An microcomputer-controlled antenna servo system is presented in this paper,the principle of operation and the accuracy of location is analyzed,and the method of subdivision driver of the step motor is also described.The experiment shows that the system runs stably,responses rapidly,and locates with high degree of accuracy. |
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| Keywords: | dual-frequency microwave radiometer antenna servo system locating accuracy low noise bandwidth |
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