轴角编码单元在CINRAD/SA雷达中的应用  

Application of the encoder unit in the CINRAD/SA radar

作　　者：任雍[1] 杨苏勤 汪学渊[1] 刘光普[1] 

机构地区：[1]福建省大气探测技术保障中心,福州350008 [2]福建泉州市气象局,泉州362000

出　　处：《电子测量技术》2016年第3期85-90,共6页Electronic Measurement Technology

基　　金：福建省气象局青年科技专项"无线射频识别技术在大型气象装备保障管理方面的应用研究"资助

摘　　要：介绍了我国新一代天气雷达CINRAD/SA天线伺服系统轴角编码单元的主要功能以及逻辑电路结构,分析了旋变激磁信号发生器、旋转变压器、RDC模数变换模块、PLD可编程逻辑器等关键部件的具体功能。进一步深入剖析了轴角编码单元如何利用粗、精码合成与纠错程序控制策略实现雷达天线的高精度控制。最后,总结分析了其在新一代天气雷达工程中的实际应用效果,证明轴角编码单元的工作性能充分达到了预期的技术指标。旨在为各级气象雷达技术保障人员提供CINRAD/SA雷达伺服系统维护和研究方面的参考。This thsis described the function and the logic circuit structure of the CINRAD/SA encoder unit,and analyzed the concrete function of resolve excitation signal generator,rotary transformers,the Resolve to the Digit Converter and the Programmable Logic Devices.Then it was analyzed deeply that how the encoder unit used the the synthesis and correction program control strategy of coarse codes and fine codes to achieve high precision radar antenna control.Finally,this paper analyzed the practical application of the encoder unit in the CINRAD/SA project which can prove that the performance target was achieved.References about maintenance and research of CINRAD/SA servo system can be provided to weather radar technology support staffs at all levels.

关 键 词：SA新一代天气雷达 轴角编码单元 可编程逻辑器件 粗精码的合成与纠错 应用 

分 类 号：TN722[电子电信—电路与系统] TP20[自动化与计算机技术—检测技术与自动化装置]