摘要
在现代战场上,电子设备体制及工作模式日益复杂、多变,新体制脉冲信号的大量使用,使得现代电磁信号侦察接收机面临的电磁环境日益密集、复杂。因此,复杂信号条件下脉冲信号检测识别技术成为现代侦察接收机中一项亟待解决的关键技术。从电子侦察的视角,借助时频分析理论,提出基于脉冲信号的分量分离和各分量的模糊函数检测方法,以其本质性的特征对电磁信号侦察进行分析讨论,并进行了仿真评估,验证了该方法指标性能的先进性。
In modern battlefield,more and more complicated and varied electronic systems and operating modes are emerging,and the wide application of advanced systems makes modern electronic countermeasure （ECM） face much denser and complex electromag- netic environment. Therefore, detection technology of pulse signals becomes one of the key technologies that should be addressed urgent- ly in ECM. In terms of electronic reconnaissance, pulse component separation and each component of the ambiguity function are dis- cussed based on time-frequency analysis theory, electromagnetic signal reconnaissance is analyzed and discussed with its essential fea- ture, simulation and evaluation are performed, and the result shows the advantage of the technology.
出处
《无线电工程》
2012年第10期23-26,共4页
Radio Engineering
关键词
时频分析
模糊函数
距离度量
模式识别
time-frequency analysis
ambiguity function
distance measurement
pattern recognition
