二维时频面的MTI滤波算法研究

MTI Filtering Algorithm Using Two-Dimension Time-Frequency Plane

分析了传统的动目标显示 (MTI)滤波算法的缺陷 ,提出了一种二维时频面的MTI滤波算法。该方法利用时频分析多通道滤波和时频局域化的特点 ,在时频平面内进行二维滤波 ,从而获得良好的杂波抑制能力 ,且具备较强的自适应性和鲁棒性。最后 ,根据实验结果给出了此种滤波算法与其他滤波算法的对比效果。

In order to overcome some deficiencies of conventional MTI filtering algorithms, a novel approach using two dimension time frequency plane is proposed here, which utilizes characteristics of TFP as multi channel filtering and time frequency localization to implement two dimensional filtering process on the time frequency plane on which target back scattered echoes are expanded, in order to achieve better clutter depression, self adaptability and robustness. Experimental results are presented at the end of this paper.