强对流天气下雷达异常监测回波报警系统设计  

Design of echo alarm system for radar abnormity monitoring in severe convective weather

作　　者：杨正玮 邹万峰 YANG Zhengwei;ZOU Wanfeng(School of Atmospheric Sciences,Nanjing University,Nanjing 210023,China)

机构地区：[1]南京大学大气科学学院,江苏南京210023

出　　处：《现代电子技术》2021年第10期1-5,共5页Modern Electronics Technique

基　　金：国家自然科学基金委员会青年科学基金项目(41805015)。

摘　　要：利用原有系统进行雷达异常监测回波报警时,在极端天气状况下无法进行回波处理,在雷达平均径向速度为3.6~5.5 m/s的范围内存在报警延时较长的问题,因此设计一种强对流天气下雷达异常监测回波报警系统。系统硬件由控制模块、显示模块、处理器模块、回波处理模块、回波报警模块、雷达异常监测模块等构成。其中,控制模块由1个时钟电路、1个复位电路以及1个控制芯片即单片机芯片构成;显示模块由点阵数显示屏构成;处理器模块选用的处理器型号为MSP034F941;回波处理模块由换能器单元与回波处理单元构成;回波报警模块由显示液晶屏、声光报警单元构成;雷达异常监测模块通过雷达异常监测传感器实现雷达异常监测功能。系统软件配置为数据处理模块,其功能是对雷达异常监测数据进行处理。为了证明该系统在指定范围内的报警延时更短,将原有系统与该系统进行对比实验,实验结果证明,该系统的报警延时相较原有系统更短,实现了性能提升。Since the original system used for radar abnormity monitoring echo alarm cannot execute the echo processing in extreme weather conditions and has a long alarm delay within the range of radar average radial velocity of 3.6~5.5 m/s,a radar abnormity monitoring echo alarm system working in strong convection weather is designed.The hardware of the system consists of control module,display module,processor module,echo processing module,echo alarm module and radar anomaly monitoring module.Among them,the control module is composed of a clock circuit,a reset circuit and a control chip(that is,a single⁃chip microcomputer chip);the display module is composed of a dot matrix display screen;the processor module is mainly composed of the processor MSP034F941;the echo processing module is composed of a transducer unit and an echo processing unit;the echo alarm module is composed of a LCD display screen and a sound⁃light alarm unit;the radar abnormity monitoring module's function is realized by means of the radar abnormity monitoring sensor.The system software is configured as a data processing module,whose function is to process the monitored radar abnormity data.In order to prove that the alarm delay of the system is shorter in the specified range,the original system is compared with the proposed system.The experimental results show that the alarm delay of the proposed system is shorter than the original system,and its performance is improved.

关 键 词：雷达异常监测 回波报警系统 回波处理 硬件构成 数据处理 对比实验 

分 类 号：TN931.3-34[电子电信—信号与信息处理] U463.85[电子电信—信息与通信工程]