摘要
分析了固定移频干扰对LFM脉冲压缩雷达的干扰效果,针对固定移频干扰容易被识别的缺点,提出了一种改进的移频方式——随机移频。理论分析表明随机移频干扰经脉压处理后为覆盖一定距离的似噪声干扰带,通过控制频移量的随机分布参数可改变干扰带覆盖范围、干扰带中心位置和干扰带内能量分布。由于干扰获得了部分压缩增益,较低的干扰功率就可实现遮盖干扰。仿真实验证实了理论分析的正确性和干扰的有效性。
The jamming effects of the fixed shift frequency Jamming to LFM Pulse Compression Radar are analyzed. For its defect of being easily discerned, an improved shift frequency style, Randomly shift frequency style is proposed. The theoretical analysis shows that its output after pulse compression is a noise like swath coveri bution can tains some proves that be changed ng by definite distance. The jamming scope, jamming area and jamming energy districontrolling the distribution parameter of shift frequency. Since the jamming obcompression gain, lower jamming power can realize the covering jamming. The simulation analysis is correct and the jamming is effective.
出处
《现代防御技术》
北大核心
2010年第1期103-108,共6页
Modern Defence Technology
关键词
线性调频
脉冲压缩
子脉冲干扰信号
移频干扰
linner frequency modulation （LFM）
pulse compression
pulse jamming signal
shift frequency jamming
