一种新的电磁频谱异动检测方法  

A New Detection Method of Electromagnetic Spectrum Anomaly

作　　者：李铭伟 何明浩[1] 冷毅[1] 韩俊[1] 唐玉文 LI Mingwei;HE Minghao;LENG Yi;HAN Jun;TANG Yuwen(Air Force Early Warning Academy,Wuhan 430019,China)

机构地区：[1]空军预警学院,湖北武汉430019

出　　处：《雷达科学与技术》2020年第5期479-486,共8页Radar Science and Technology

基　　金：湖北省自然科学基金(No.2016CFB288)。

摘　　要：针对传统雷达对抗侦察装备缺乏对复杂电磁环境频谱异动的感知能力,本文提出一种新的电磁频谱异动检测方法。该方法首先建立了频谱能量分布模型,形成二维频谱图像;然后通过计算图像亮度直方图纹理描绘子,设定距离门限对信号频谱图像进行检测;最后在图像差值法基础上利用形态学图像处理得到异动信号的坐标信息。本文仿真为半实物仿真,基于实测数据的仿真结果证明了本文方法的有效性。该方法可以为雷达对抗侦察装备设计提供新的思路。The traditional radar countermeasure and reconnaissance equipment lacks the ability to perceive the spectrum anomaly in complex electromagnetic environment.In this paper,a new detection method for spectrum anomaly is proposed.Firstly,a model of spectrum energy distribution is established to form a two-dimensional spectrum image.Secondly,the spectrum image is detected by calculating the image texture descriptor of brightness histogram and setting the range threshold.Finally,the coordinate information of the abnormal signal is obtained by morphological image processing based on the difference image method.The semi-physical simulation is made.The simulation results based on the measured data prove the effectiveness of the proposed method.This method can provide a new idea for the design of radar countermeasure and reconnaissance equipment.

关 键 词：雷达对抗 电磁频谱 异动检测 形态学图像处理 半实物仿真 

分 类 号：TN974[电子电信—信号与信息处理]