双线偏振全数字相控阵天气雷达设计与试验  

Design and Experiment of Dual Polarization All-digital Phased Array Weather Radar

作　　者：刘新安 曾正茂 陈玉宝[3] 张深寿 刘光普[5] 佟翔宇 孙正齐 LIU Xinan;ZENG Zhengmao;CHEN Yubao;ZHANG Shenshou;LIU Guangpu;TONG Xiangyu;SUN Zhengqi(Nanjing NRIET Industrial Co.,Ltd.,Nanjing Jiangsu 211106,China;Fujian Meteorological Information Center,Fuzhou Fujian 350001,China;CMA Meteorological Observation Center,Beijing 100081,China;Fujian Key Laboratory of Severe Weather,Fuzhou Fujian 350001,China;Fujian Atmospheric Detection Technology Support Center,Fuzhou Fujian 350008,China;Nanjing Research Institute of Electronics Technology,Nanjing Jiangsu 210039,China)

机构地区：[1]南京恩瑞特实业有限公司,江苏南京211106 [2]福建省气象信息中心,福建福州350001 [3]中国气象局气象探测中心,北京100081 [4]福建省灾害天气重点实验室,福建福州350001 [5]福建省大气探测技术保障中心,福建福州350008 [6]南京电子技术研究所,江苏南京210039

出　　处：《现代雷达》2024年第4期65-75,共11页Modern Radar

摘　　要：基于极端灾害性天气对高时空分辨率的探测需求,提出了一种采用平板阵列天线和全数字收发组件,并具有双线偏振功能的S波段相控阵天气雷达系统的实现方法,并对涉及的关键技术进行了研究分析,提出了基于脉内频相扫多波束的扫描策略设计,以及基于机内标定系统的在线标定设计思路。最后采用研制的工程样机开展了强对流天气观测试验,并与CINRAD/SAD雷达的观测数据进行了对比,对比结果表明采用该方法设计的工程样机对强对流天气的观测具有一定优势。Based on the need for high spatial and temporal resolution detection of extreme catastrophic weather,an implementation method for an S-band phased array weather radar system is proposed in this paper,employing a flat array antenna and fully digital transceiver components,and featuring dual-linear polarization.The key technologies involved are studied and analyzed,and a scanning strategy design based on intra pulse frequency phase scanning multi beam,as well as an online calibration design concept based on an internal calibration system,are proposed.Finally,experimental observations of severe convective weather are conducted using an engineering prototype developed,and compared with the observation data from the CINRAD/SAD radar.The comparative results show that the engineering prototype,designed using this method,possesses certain advantages in observing severe convective weather.

关 键 词：双极化 全数字相控阵 平板阵列天线 扫描策略 系统标定 

分 类 号：TN959.4[电子电信—信号与信息处理]