基于时间抖动的幅度量化DRFM谐波衰减技术  

The Technique of Amplitude Quantizing DRFM Harmonic Attenuation Based on Time-jitter

作　　者：李勇[1] 阙大顺[1] 

机构地区：[1]武汉理工大学信息工程学院,武汉430063

出　　处：《电子对抗》2007年第4期20-23,共4页Electronic Warfare

摘　　要：数字射频存储器（DRFM-Digital Radio Frequency Memory）的优势是可以对现代采用复杂波形的雷达实施干扰，增强了电子对抗设备的干扰能力。但由于需要用A／D变换器将模拟信号变换为数字信号，不可避免地会引入不期望的谐波分量，这些谐波混叠进接收机系统，会降低干扰设备的功率利用率，而且会被受干扰雷达或附加的系统探测到作为识别存在DRFM干扰信号的依据，对干扰源进行攻击。文章主要讨论时间抖动在幅度量化DRFM谐波衰减方面的应用。The superiority of DRFM（Digital Radio Frequency Memory） is that the modem radar which adopted complex waveforms can be jammed with DRFM, thus the jamming capability of the EW equipment can be improved. Because the A/D converter is needed to convert the analog signals into digital signals, the unwanted harmonic component will be produced inevitably. Once the harmonic enter the receiver system, the effectiveness of the jamming equipment will be decrease. And the harmonic can be detected by the radar or other additional system. And this will be the basis which verified the existence of the DRFM jamming signals, so the jamming source will be attacked. The application of time-jitter in amplitude quantizing DRFM harmonic attenuation is discussed in this paper.

关 键 词：时间抖动 幅度 数字射频存储器 谐波衰减 

分 类 号：TN974[电子电信—信号与信息处理]