摘要
间歇采样转发干扰可形成距离向上前移和滞后的多假目标,产生逼真的相干假目标串的干扰效果,是一种巧妙的干扰样式。将该干扰思想用于SAR体制,详细推导了SAR间歇采样转发干扰的输出形式,然后分析了间歇采样间隔、占空比、转发方式等因素对SAR干扰效果的影响。仿真实验验证了理论分析的正确性,该研究结果对于形成SAR距离向的多假目标有着重要的理论指导意义。
As a clever jamming mode, the intermittent sampling repeater jamming can produce multi fronted and lagged false targets, which forms the jamming effect of lifelike coherent false target series. Based on the mathematical principles of intermittent sampling repeater jamming, the output of SAR intermittent sampling repeater jamming is derived in details. Afterward, the influence of the sampling interval, duly ratio and repeater mode on the jamming performance is analyzed. The analyses are Verified by simulation experiments. The research is very important for producing multi false targets in range direction to SAR.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2009年第5期2043-2048,2072,共7页
Journal of Astronautics
基金
"十一五"武器装备预先研究项目(513040305)
国家自然科学基金(60672033)
关键词
SAR
间歇采样
转发干扰
采样周期
占空比
转发方式
SAR
Intermittent sampling
Repeater jamming
Sampling interval
Duty ratio
Repeater mode
