| 基于相位调制的相干雷达对消干扰分析 |
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| 引用本文： | 曲长文,向迎春,侯海平,周伟江.基于相位调制的相干雷达对消干扰分析[J].电子科技大学学报（自然科学版）,2011,40(6):829-834. |
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| 作者姓名： | 曲长文 向迎春 侯海平 周伟江 |
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| 作者单位： | 1.海军航空工程学院电子信息工程系 山东 烟台 264001; |
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| 基金项目： | “泰山学者”建设工程专项基金 |
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| 摘 要： | 针对高功率的干扰信号易被反辐射导弹跟踪,提出了基于相位调制的新型对消干扰技术.根据雷达信号及其相位调制信息生成对消信号,利用雷达回波与对消信号的相干抵消实现对目标的保护.分析了几种典型脉压信号的信号特性并从群延迟函数的角度解释了对消干扰对匹配滤波输出的影响,阐述了对消误差与对消干扰效果的关系,给出了对消信号的实现方法和...
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| 关 键 词： | 对消干扰 线性调频 相位编码 相位调制 雷达工程 |
| 收稿时间： | 2010-03-24 |
Cancellation Interference Analysis of Coherent Radar Based on Phase Modulation |
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| Affiliation: | 1.Department of Electronic and Information Engineering,Naval Aeronautical and Astronautical University Yantai Shandong 264001;2.Unit 92493 Armament Department of PLA Huludao Liaoning 125000 |
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| Abstract: | To solve the problem that high power signal may be tracked by anti-radiation missile in coherent interference, a novel cancellation interference method based on phase modulation is proposed. The kernel thought is to produce cancellation signal according to radar signal and its phase modulation information so as to protect target through the cancellation between radar signal and interference signal. Characteristics of several typical pulse compressed signals are analyzed. Mechanism of signal cancellation's influence on filtering output was explained through the group delay function. Then connection between cancellation error and cancellation effect is explained. The implementation method of cancellation signal and the effect evaluating indicator are provided. Simulation results show that the proposed method could reduce effectively the detecting probability of radar to that below 50% through canceling interference, which can provide reference for targets' active stealth. |
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