CINRAD/CA型新一代天气雷达检测标校技术

Detection and calibration techniques of CINRAD/CA weather radar

新一代天气雷达在运行过程中,因天伺系统长期运转、微波器件和软件程序长期运行,容易造成技术指标超差,需要定期对其主要参数进行检测标校。目前,台站CINRAD/CA型雷达检测标校的操作步骤和方法还不够规范,不恰当的方法容易对雷达本身造成伤害,更无法保证雷达处于最佳运行状态。为使该型号雷达检测标校更规范,介绍了雷达的天伺系统、发射系统、接收系统及整机系统的主要技术指标测试的基本原理及操作方法,对超差的技术指标修正方法进行了分析研究,并以机内外强度和动态范围标校结果为例进行了分析,表明这种基本操作步骤和方法可靠,可为技术保障人员在检测标校工作中提供参考。

Technical indicators are easy to exceed during the long-term running with the antenna system,microwave device and software program of the new generation weather radar and it is necessary to regularly detect and calibrate its main indicators.But the operation steps and methods of the CINRAD/CA radar are not standard enough,and it is easy to cause damage to the radar itself with inappropriate methods.So the optimal operation states are not guaranteed with non-standardized.In order to more standardize of this type of radar,the paper introduces the basic principles and operation methods of the main technical indicators of the radar's antenna system,transmission system,receiving system and whole system,and the calibration methods of deviation indicators are analyzed.It takes the internal and external intensity and dynamic range calibration results for examples,the operation steps and techniques are reliable for the technical support personnel in the Detection and calibration.