作为云探测的主要遥感手段，毫米波测云雷达能够为云宏微观 参数的反演提供及时、准确和可靠的信息。毫米波云雷达探测器定标技术研究不仅能够 充分发挥其观测数据的使用效益，而且还可以提高观测质量。尽管毫米波测云雷达内定标系统具有 对主要工作参数进行自动检测和对探测结果进行修订的功能，可以保证探测结果的稳 定性和真实性，但是内定标系统并没有考虑天线特性以及不同部件之间的相互影响。 因此，针对外定标技术的研究工作显得尤为迫切。在国外机载毫米波测云雷达外定标实验 的基础上，介绍和分析了外定标技术，并拟制了外定标技术流程，为将来我国自行开展 机载外定标实验提供了参考和借鉴。

As the main remote sensing means for cloud detection, millimeter wave cloud measurement radars can provide timely, accurate and reliable information for the inversion of macroscopic and microscopic parameters of cloud. The study of the calibration technology for millimeter wave cloud radars is not only helpful to the full use of their observation data, but also is helpful to the improvement of observation quality. Although the internal calibration systems for millimeter wave cloud radars can automatically detect the main operation parameters and revise the detected results so as to keep the stability and authenticity of the detected results, they do not take the antenna characteristics and the interaction among different components into consideration. Therefore, it is particularly urgent to study the external calibration technology for millimeter wave cloud radars. On the basis of the external calibration experiments of airborne millimeter wave cloud radars at home and abroad, the external calibration technologies are presented and analyzed and the process of external calibration is determined. This provides the reference for the initial airborne external calibration experiment in our country in the future.