【摘要】 目的　对合成孔径雷达 (SAR)图像实施恒虚警率 (CFAR)目标检测 .方法　利用 K-Gamma和Weibull分布的杂波模型分别对海面和陆地的人造目标实施检测 ;同时 ,对不同杂波背景下 CFAR检测方法进行比较 .结果与结论　通过检测结果的比较 ,证实了 K-Gamma分布和 Weibull分布分别适合于海面和陆地杂波背景下的目标检测 ;在非均匀杂波背景中 ,有序统计量 (OS)较单元平均 (CA)方法具有优越性更多还原

【Abstract】 Aim\ To implement constant false alarm rate (CFAR) target detection in SAR imagery. Methods\ Based on K Gamma and Weibull distribution model The man made, target are detected for sea and ground clutter respectively. Comparisons is made between the various CFAR techniques in various clutter background. Results and Conclusion\ Through these comparisons, it is confirmed that the K Gamma and Weibull distributions are suitable for the CFAR detection in sea and ground clutter respectively. We also conclude that the Order Statistic CFAR (OS CFAR) technique has better performances than the Cell Averaged CFAR (CA CFAR) technique in non homogeneous clutter background.更多还原