SIMO-MIMO模式城市建筑群下视阵列SAR三维仿真  

SIMO-MIMO Model Urban Buildings Downward-looking Array SAR 3D Simulation

作　　者：薛雁明 刘辉 

机构地区：[1]郑州测绘学校,河南郑州450015 [2]信息工程大学地理空间信息学院,河南郑州450052

出　　处：《测绘通报》2017年第8期19-24,共6页Bulletin of Surveying and Mapping

基　　金：国家自然科学基金(41071296;41474010;61401509)

摘　　要：真实下视阵列SAR系统的缺失,给该技术数据获取及进一步技术研究带来了困难,下视阵列SAR三维仿真的研究具有重要意义。为了有效反映下视阵列SAR技术在建筑物耸立的城市区域的三维成像优势,本文采用单输入多输出(SIMO)和多输入多输出(MIMO)两种模式仿真了城市建筑群下视阵列SAR回波数据,并对两种模式的回波数据进行了三维距离多普勒成像处理,通过SIMO模式成像结果、MIMO模式成像结果分别与原始地形的差分对比,验证了本文方法的有效性及两种模式的优劣性。The absence of real downward-looking array SAR system has brought difficulties to data acquisition and further technical for this technology, so the research of downward-looking array SAR 3D simulation has great significance. In order to effectively reflect the 3D imaging advantages of the downward-looking array SAR technology in urban buildings, SIMO and MIMO were used to simulate the downward-looking array SAR echo data of urban buildings in this paper. And then the 3D RD imaging algorithm is processed on the echo data of this two modes. The difference contrast of simulation results of SIMO mode and MIMO mode with original terrain verified the effectiveness of this method and advantages and disadvantages of two models.

关 键 词：单输入多输出(SIMO) 多输入多输出(MIMO) 下视阵列SAR 城市建筑群 仿真 

分 类 号：P237[天文地球—摄影测量与遥感]