为了抵消天气雷达的参数变化所引起的雷达回波强度的误差 ,根据天气雷达回波强度定标的基本原理 ,结合我们多年来在天气雷达的参数测量、系统调整及回波强度定标中累积的经验 ,将详细地论述 713C天气雷达回波强度定标的内在过程 :给出了回波强度定标的软件流程、介绍了雷达定标前的准备工作及定标过程、说明了 713C天气雷达回波强度定标文件的形成方法、又提出了几种对天气雷达定标结果的验证方法。这样才能使得定标后天气雷达残存的回波强度误差在整个接收系统对数动态线性范围内控制在 2dB以内 ,保证天气雷达定量探测降水回

In order to overcome the radar echo intensity's error caused by variations of weather radar's parameters , on the basis of basic principles of echo intensity calibration of weather radar, and combined with our experiences accumulated in radar parameter measurement, system adjustment and echo intensity calibration during many years , this article discusses an inner process of echo intensity calibration of 713C weather radar in detail:it describes the software flow chart of echo intensity calibration, introduces the preparations before calibration and the calibration process, explains the forming methods of 713C weather radar's calibration files, and presents some validation methods of calibration results . Thus, the remaining echo intensity error can be controlled within 2dB in log dynamic linear range of whole receiver system after weather radar echo intensity calibration and the accuracy of echo intensity can be ensured when weather radar quantitatively probing precipitation.

TN959.4