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针对宽带毫米波高分辨雷达体制 ,研究了杂波环境中的目标检测问题。提出了极化域线性积累滤波的思路以提高雷达接收信号的信杂比 ,在此基础上利用宽带波形固有的径向高分辨力对目标进行一维距离成像 ,估计出回波中强散射点的数量和分布 ,通过对不同径向分辨单元内的强散射点进行整体检测 ,可进一步有效地提高信杂比 ,改善雷达的检测性能。最后在毫米波段的实验仿真结果表明该方法是一种非常有效的扩展目标检测方法
Aiming at the broadband millimeter wave high resolution radar system, the target detection problem in clutter environment is studied. The idea of linearly accumulated filtering in the polarimetric domain is proposed to improve the signal-to-noise ratio (SNR) of the received signal. Based on this, a one-dimensional distance imaging is performed on the target using the radial high resolution inherent in the wideband waveform. The number and distribution of the scattering elements can be greatly improved by improving the signal-to-noise ratio and improving the detection performance of the radar. Finally, the experimental simulation results in the millimeter wave band show that this method is a very effective method to detect the expansion target