摘要
针对目前宽带高分辨SAR的广泛应用,该文在先前对宽带SAR类杂波干扰机理基础上进一步简化类杂波干扰系统。针对宽带类杂波干扰信号的特点,分析讨论了直接数字合成+倍频方式,以及去斜后基带信号与宽带线性调频信号混频后产生宽带类杂波干扰信号的不足,提出了子带拼接的宽带雷达类杂波干扰信号的实现结构,讨论了无误差和误差拼接条件下的干扰信号的时频域特征,从理论和仿真实验验证了该方法的可行性。
At present,the wideband high-resolution SAR takes on more and more important station.Based on the research of the theory of the similar clutter's jamming previously,the paper analyses the shortcoming of the multiple frequency and based-band signal mixing with the wide-chirp signal which realize the wide jamming signal contraposeing to the characteristic of wideband similar clutter′s jamming signal,furthermore the paper puts forward the method of using the narrowband signals pieceing together technology on w...
出处
《现代雷达》
CSCD
北大核心
2008年第1期55-59,共5页
Modern Radar
关键词
高分辨合成孔径雷达
类杂波干扰
倍频
子带拼接技术
high-resolution SAR
similar clutter′s jamming
multiple frequency
narrowband signals pieceing together technology
