摘要
针对VHF/UHF波段超宽带合成孔径雷达探测叶簇隐蔽目标的应用场合,提出了一种目标检测算法。该算法依据目标与树干回波的子孔径轨迹的起伏差异,以主成分分析的第二主元为特征,提取了超宽带合成孔径雷达对目标进行大积累角观测所提供的方向性信息,能够有效检测隐蔽于树林中的隐蔽目标。给出了该方法的数学模型、物理原理和实现步骤,并运用实际数据进行了试验,结果表明了该方法的有效性。
A target detection method is proposed for exploring hidden man-made targets in foliage with VHF/ UHF band UWBSAR. UWBSAR' s wide accumulated angle can offer sub-aperture trajectory feature for hidden manmade target detection. The method extracts the difference of the sub-aperture trajectory fluctuation by the second principle component of PCA. The mathematic model, the physical principle and the realization steps of the method are also given. Experiment results show the effectiveness of the method.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2005年第11期1819-1821,共3页
Systems Engineering and Electronics
基金
"十五"国防预研基金资助课题(41307020203)