VHF/UHF超宽带合成孔径雷达穿透性能分析  

Penetration Performance Analysis of VHF/UHF Ultra-Wideband Synthetic Aperture Radar

作　　者：周智敏[1] 黄晓涛[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《系统工程与电子技术》2003年第11期1336-1340,共5页Systems Engineering and Electronics

基　　金：九五"国防预研项目资助课题(7 5 3 2)

摘　　要：穿透性能是VHF/UHF超宽带合成孔径雷达的突出特点,本文定量地分析了其对叶簇、地表的穿透能力,给出了穿透深度与有关参数的数学关系。分析了波长、入射角和极化等主要因素对穿透性能的影响,认为:频段选择需要综合考虑穿透能力和系统实现难度,而极化以HH方式最佳。文中结论对超宽雷达系统设计与性能评估具有实际应用价值。The performance of penetration is the prominent feature of ultra wide band synthetic aperture radar (UWB SAR) in VHF/UHF frequency band. The capability of UWB SAR to penetrate through foliage and ground is quantitatively analyzed. The mathematical relation between the depth of penetration and the corresponding parameters are given. Some main governing factors including wavelength, incident angle and polarization are discussed. We point out that the selection of frequency band should both consider the penetration and implementation of the system, while the HH polarization is preferred in most cases. Our conclusions show great promise for the design and performance evaluation of UWB SAR.\;

关 键 词：超宽带合成孔径雷达 穿透性能 后向散射 

分 类 号：TN953[电子电信—信号与信息处理]