基于波形分集的雷达抗欺骗干扰  

Approach of Radar Against Deception Jamming Based on Waveform Diversity

作　　者：张劲东[1] 李彧晟[1] 朱晓华[1] 

机构地区：[1]南京理工大学电子工程与光电技术学院,南京210094

出　　处：《数据采集与处理》2010年第2期138-142,共5页Journal of Data Acquisition and Processing

摘　　要：提出一种基于波形分集技术的雷达抗距离欺骗式干扰方法。该方法采用Alam outi空时码的思想,利用干扰机对雷达信号的转发,通过构造一组具有频域正交性的发射波形,从而实现距离波门拖引下假目标的对消。文中分析了欺骗式干扰下回波信号模型,推导了停拖期和拖引期假目标对消的原理,最后进行了仿真实验。理论和仿真结果表明,该方法正确可行。A new method for anti-distance deception jamming is proposed based on the waveform diversity. The method adopts Alamouti space time block code to construct a set of transmitted signals with orthogonal frequency domain repeated by the jammer, thus removing deceptive decoys on the range gate pull off （RGPO）. Then, echo signal model on the deception jamming is analyzed and principle of removing decoys on RGPO is deduced. Finally, the simulation is performed. Theoretical and simulation results show that the method is correct and feasible.

关 键 词：波形分集 欺骗式干扰 距离波门拖引 

分 类 号：TN973[电子电信—信号与信息处理]