三维合成孔径雷达的原理和实例  

The Principle of 3D-SAR and Its Some Examples

作　　者：张直中[1] 

机构地区：[1]中国电子科技集团公司第14研究所,江苏南京210013

出　　处：《雷达科学与技术》2006年第1期12-14,40,共4页Radar Science and Technology

摘　　要：简单介绍机载合成孔径雷达用双天线干涉法测高得到三维SAR成像的原理并给出了实例。实例中选用英国Andover飞机在C波段获得的Malvern山的三维立体像和美国NASA/JPL设计的AIR-SAR/TOPSAR三波段干涉测高在C波段测得的玻利维亚Andes山的立体像。文中指出,航天飞机只给出了单天线双航过测高的实例。而干涉法有时会出现相位折叠,必须解开。文中给出了相位解开的参考文献。This paper describes the principle of airborne interferometric synthetic aperture radar using two antenna to get three dimensional image and gives some examples. In England, the aircraft Andover using its C band SAR gets reconstructed topographic map of the Malvern Hill. In the United States of America, AIRSAR/TOPSAR at C band gets topographic map of the Andes Hill. Until now space aircraft only provides topographic map by using one-antenna double pass technique. Phase folding appears sometimes for interferometric SAR, which must be unwrapped. Some reference papers about the phase unwrapping techniques are given.

关 键 词：干涉测高 双天线单航过法 单天线双航过法 遮蔽和重叠 相位解开 

分 类 号：TN958[电子电信—信号与信息处理]