摘要
针对部分相干干扰存在干扰区域和干扰功率损失之间的矛盾,提出了一种合成孔径雷达干扰信号:时延脉间抖动转发干扰。在合成孔径时间内,该转发干扰的脉间时延在一个微小的时间范围内随机变化。研究表明,新的干扰信号可获得合成孔径雷达(SAR)距离向匹配处理增益,其成像输出为在距离向占据一定宽度的似噪条带。因此其优于噪声干扰和存在干扰参数失配的其他同类干扰,且易于实现。文中给出了理论推导,并用仿真实验验证了干扰的有效性。
Aimed at the contradiction between interference regional coverage and interference power loss in partly coherent jamming styles,a new partly coherent jamming style against synthetic aperture radar（SAR）,time-delay inter-pulse jitter repeater jamming is proposed.In the synthetic aperture time,the inter-pulse time delay of this repeater jamming varies randomly in a small time range.The research shows that this repeater jamming can obtain the whole matched processing gains in range dimension and its SAR imaging output is a similar noise swath,covering a part of fast time domain as well as the whole slow time domain.Thus,it is superior to both noise jamming and other interferences which have dismatched jamming parameters.And it can be implemented easily.The theoretic analysis is given and its performance is verified by simulation.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2012年第9期1031-1035,共5页
Acta Armamentarii
关键词
信息处理技术
合成孔径雷达
压制干扰
相干干扰
转发干扰
移频干扰
时延
information processing
synthetic aperture radar
suppression jamming
coherent jamming
repeater jamming
shift-frequency jamming
time delay
