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.
出处
《雷达科学与技术》
2006年第1期12-14,40,共4页
Radar Science and Technology
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
interferometrie high-measurement
two antennas single pass interferometry
one-antennadouble pass interferometry
shadowing and overlapping
phase unwrapping
