合成孔径雷达窄带瞄频噪声干扰方法

Narrow-band Frequency Spot Noise Jamming Method for Synthetic Aperture Radar

合成孔径雷达(SAR)在军事领域的大量应用,极大促进了SAR对抗的发展。在对抗过程中掌握所使用的干扰样式的特点,才可以达成最良好的干扰效果。为了清楚认识瞄频噪声干扰的效果,基于数学模型分析了窄带瞄频噪声干扰的信号产生和信号带宽,介绍了窄带瞄频噪声干扰的方位向压制范围,给出了概略的压制中心位置。最后使用典型雷达参数进行了仿真验证,为真实对抗中合理使用此种干扰及合理布站提供了理论指导。

Synthetic aperture radar(SAR)has been widely used in the military field,which greatly promotes the development of SAR countermeasures.In the process of confrontation,if the characteristics of the used jamming method can not be clearly grasped,the good jamming effect cannot be achieved.In order to clearly understand the effect of frequency spot noise jamming,this paper analyzes the signal generation and signal bandwidth of narrow-band frequency spot noise jamming based on mathematical model,introduces the range of azimuth suppression of narrow-band frequency spot noise jamming,gives the rough position of suppression centre,finally uses the typical radar parameters to perform the simulation and verification,which provides the theoretical guidance for the rational use of this jamming and the rational station distribution in the real radar countermeasures.