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针对散射波干扰对多通道合成孔径雷达-地面动目标显示(SAR-GMTI)的对抗性能展开研究,文中给出了散射波干扰原理,分析了散射波干扰在SAR距离向和方位向的干扰效果,采用三通道干涉对消技术分析了散射波干扰对多通道GMTI的对抗性能。理论分析和仿真实验表明:散射波干扰对多通道SAR-GMTI仍然具有假目标干扰效果,由于多通道GMTI对干扰的抑制和对消,假目标幅度受正弦调制系数的影响将出现增强区和削弱区。
Aiming at the confrontation performance of multi-channel synthetic aperture radar-ground moving target display (SAR-GMTI) based on scattered wave interference, the principle of scattered wave interference is given and the interference effect of scattered wave interference in SAR range and azimuth is analyzed , The interference performance of the multi-channel GMTI by scattered wave interference is analyzed by the three-channel interference cancellation technique. The theoretical analysis and simulation results show that the scattered-wave interference still has a false target interference effect on the multi-channel SAR-GMTI. Due to suppression and cancellation of the interference by the multi-channel GMTI, the pseudo-target amplitude will be enhanced and weakened due to the sinusoidal modulation coefficient Area.