【作者】 栾琳；

【导师】 张林让；

【作者基本信息】 西安电子科技大学 ， 信号与信息处理， 2009， 硕士

【摘要】 雷达技术的飞速发展使得传统的干扰措施已经无法满足现代电子战争的要求。随着研究的深入,人们提出了一种性能较好的的干扰方式——灵巧噪声干扰,可以对雷达进行有效的干扰。本文是在已有研究成果的基础上,对灵巧噪声干扰进行较为全面的建模仿真研究。本文首先根据灵巧噪声干扰的干扰特征和需求,运用视频噪声卷积调制和移频干扰相结合的方法产生出一种干扰效果较好的灵巧噪声干扰波形,并对其进行性能分析,寻求最佳调制参数。然后将灵巧噪声干扰对旁瓣消隐、旁瓣相消的干扰效果进行了分析,并通过仿真进行了验证。最后将一种基于特征空间的旁瓣相消方法进行了改进,用于对抗灵巧噪声干扰,得到了较好的效果。更多还原

【Abstract】 The research of new measure against modern radar has become an impending problem along with the fast development of radar technology. A new kind of jamming appears through profound study, which is called smart noise jamming. The purpose of this paper is to analyze smart noise jamming roundly.To analyze the peculiarity of this jamming, the simulation method is used. First, a kind of smart noise jamming waveform is generated with the method of noise modulation and shift-frequency jamming. Next, this paper illuminates the validity of smart noise jamming countering sidelobe blanking (SLB) and sidelobe cancelling (SLC). Last, a new SLC based on eigen-value decomposition is developed to make smart noise jamming invalid.更多还原