无载频超宽带雷达的梳状谱干扰技术  

Jamming the carrier-free ultra-wideband radar with comb spectrum signals

作　　者：沈爱国[1] 姜秋喜[1] 

机构地区：[1]电子工程学院,安徽合肥230037

出　　处：《系统工程与电子技术》2009年第1期66-68,共3页Systems Engineering and Electronics

摘　　要：针对传统干扰技术难以对超宽带雷达实现有效的干扰,提出了梳状谱干扰新技术。该技术在雷达信号带宽内将干扰信号集中在随机的某些频率点附近,在不改变干扰信号总能量的前提下提高了超宽带雷达信号带宽范围内部分区域的干扰信号强度,破坏雷达回波信号的相干性。以无载频超宽带雷达为研究对象,分析了该干扰新技术的机理。通过仿真实验,将该方法与噪声干扰进行比较,证明了该技术的有效性。To study a new method that can jam the ultra-wideband （UWB） radar, which band-width is very wide, a new technique is introduced. The UWB radar is jammed by the comb spectrum signals in the new technique. The jam power is concentrated at some random frequency points between the radar signal band-width. In this way the jam power at some range is enhanced with increase the total jam power. And the coherence of the radar signal is destroyed. The jam principle is analyzed using the carrier-free UWB radar as the study object. Compared with the noise jan： method, the simulated results prove that the technique is effective.

关 键 词：超宽带雷达 干扰技术 仿真 梳状谱 

分 类 号：TN95[电子电信—信号与信息处理]