摘要
经干扰机进行正弦调频后的干扰信号与原信号具有一定的相干性,能够获得匹配滤波器的增益,有较高的能量利用率。在分析了正弦调频干扰信号的频谱特点后,对二维干扰模型进行了推导,还分析了调制参数变化对干扰效果的影响,最后利用仿真实验验证了理论的正确性。
The jamming signals which are sinusoidal frequency modulated in jammer is similar to the original signals,so they can acquire the power gain from the matched filter and have high power usage ratio.After analyzing the spectrum characteristics of sinusoidal frequency modulation（FM） jamming signals,this paper deduces the 2-D jamming model,also analyzes the influence of modulation parameter change on the jamming effect,finally proves the correction of the principle by the simulation experiment.
出处
《舰船电子对抗》
2011年第6期1-3,7,共4页
Shipboard Electronic Countermeasure
基金
博士后基金项目
项目编号:20100471836
关键词
正弦调频
调制参数
频率搬移
sinusoidal frequency modulation
modulation parameter
frequency-shift.
