基于宽带实时频谱分析的雷达监测方法  

Radar Monitoring Method Based on Broadband Real-time Spectrum Analysis

作　　者：龚非 龚玉玲[2] 苏航 徐晓栋[2] 吴鸿海 GONG Fei;GONG Yuling;SU Hang;XU Xiaodong;WU Honghai(Nanjing Aerospace Industry Science and Technology Co.,Ltd.,Nanjing 210000,China;School of Mechanical and Electrical Engineering,Taizhou University,Taizhou 225300,China)

机构地区：[1]南京航天工业科技有限公司,江苏南京210000 [2]泰州学院机电工程学院,江苏泰州225300

出　　处：《现代信息科技》2025年第3期1-5,11,共6页Modern Information Technology

基　　金：泰州市科技局社会发展项目(TS202234);江苏省教育科学“十三五”规划(C-a/2018/01/04);泰州学院2022年度“课程思政”示范建设项目(22KCSZ10);泰州学院高层次人才科研启动基金(TZXYQD2023008/B)。

摘　　要：为了对试验场区进行电磁环境监测,文章主要对1 GHz瞬时带宽的电磁信号进行实时频谱分析的研究。使用时间片将连续时间划分为8组,每组时间片对电磁信号进行多倍复用并行FFT,同时使用频谱统计和数字荧光显示进行实时频谱分析。试验表明,系统能对1 GHz瞬时带宽的电磁信号实施不间断监测。实时频谱统计技术将采样速率从2 500 MB/s降低至不足1 MB/s,在满足复杂电磁环境下的实时频谱监测分析的同时,大幅度降低输出数据传输压力,扩大了系统应用环境。In order to monitor the electromagnetic environment of the test site,this paper mainly studies the real-time spectrum analysis of the 1 GHz instantaneous bandwidth electromagnetic signal.The time slice is used to divide the continuous time into 8 groups.Each group of time slice performs multi-multiplexing parallel FFT on the electromagnetic signal,and realtime spectrum analysis is performed using spectrum statistics and digital phosphor display at the same time.Experiments show that the system can continuously monitor the electromagnetic signal with an instantaneous bandwidth of 1 GHz.Realtime spectrum statistics technology reduces the sampling rate from 2500 MB/s to less than 1 MB/s,which greatly reduces the transmission pressure of output data and expands the application environment of the system while satisfying the real-time spectrum monitoring and analysis in complex electromagnetic environment.

关 键 词：实时频谱 FFT 数字荧光 频谱统计 电子对抗 

分 类 号：TN97[电子电信—信号与信息处理]