基于宽带数字化接收的SAR干扰方式研究  

Countermeasures against SAR based on wideband digital receiver

作　　者：臧小刚[1] 宫新保[1] 凌小峰[1] 常成[1] 范晔[1] 

机构地区：[1]上海交通大学高速数字信号处理实验室,上海200240

出　　处：《航天电子对抗》2007年第6期42-44,共3页Aerospace Electronic Warfare

摘　　要：欺骗式干扰是针对SAR的重要干扰方式,但为了达到有效的干扰,需要对雷达信号的中心频率、到达角、脉内调制参数等信息有进行准确及时的估计。结合宽带数字一体化接收机的硬件处理平台,提出了基于宽带数字化接收的SAR欺骗式干扰系统的设计方案。初步测试结果表明,该系统对SAR的主要参数(如工作频率和调频斜率)达到了较高的测量精度。Deceptive electronic countermeasure （DECM） is an important technique against SARs. However,in order to achieve effective results,DECM system must obtain accurate and real-time estimations on important parameters of SAR such as center frequency, angle of arrival, pulse modulation, etc. Based on hardware implementation of wideband digital integrative receivers,a scheme of DECM system against SARs combining with digital techniques of wideband receivers is proposed. Preliminary test results demonstrate that the system obtains good measurements on important parameters of SARs such as frequency and frequency modulation slope.

关 键 词：SAR 宽带数字化接收机 雷达侦察 欺骗式干扰 

分 类 号：TN974[电子电信—信号与信息处理]