云闪定位数字信号处理系统设计与实现  

Design and implementation of digital signal processing system for cloud flash location

作　　者：卢舟 孙秀斌[2,3] 佘菁力 袁首 刘钟中 Lu Zhou;Sun Xiubin;She Jingli;Yuan Shou;Liu Zhongzhong(Changde Meteorological Bureau,Changde 415000,China;College of Electronic Engineering,Chengdu University of Information Technology,Chengdu 610225,China;Key Laboratory of Atmospheric Sounding-KLAS,CMA,Chengdu 610225,China)

机构地区：[1]常德市气象局,常德415000 [2]成都信息工程大学电子工程学院,成都610225 [3]中国气象局大气探测重点开放实验室,成都610225

出　　处：《国外电子测量技术》2020年第6期110-115,共6页Foreign Electronic Measurement Technology

基　　金：湖南省气象局2018年短平快课题(XQKJ18B005)项目资助。

摘　　要：为了减少云闪对微电子设备、电力通信系统、航空航天飞行器等造成的危害,实现云闪定位并监测其发展趋势非常重要。基于DSP+FPGA框架设计了一种云闪定位数字信号处理系统,给出了系统总体硬件结构以及各部分主要电路设计,并且详细介绍了基于二维MUSIC算法的测向原理及其DSP软件实现流程。采用MATLAB对测向算法进行仿真,并和DSP运算结果进行对比。结果表明该系统可实现对云闪辐射源信号的定位,为云闪定位系统软硬件开发提供了一种行之有效的方案。In order to reduce the damage caused by cloud flash to microelectronic devices,power communication system,aerospace vehicles and so on,it is very important to realize cloud flash positioning and monitor its development trend.This paper designs a digital signal processing system for cloud-flash location based on DSP+FPGA framework.The overall hardware structure of the system and the main circuit design of each part are given.The principle of direction finding based on two-dimensional MUSIC algorithm and its DSP software implementation flow are introduced in detail.The direction finding algorithm was simulated by MATLAB and compared with the DSP operation results.The results show that the system can locate the cloud flash source signal and provide an effective solution for the software and hardware development of the cloud flash positioning system.

关 键 词：云闪定位 DSP FPGA AD9235 二维MUSIC算法 

分 类 号：TN911.7[电子电信—通信与信息系统]