星载SAR方位多通道收发天线尺寸优化方法研究  

A Method to Optimize Azimuth Antenna Size of Multi-Channel Spaceborne SAR

作　　者：席沛丽 徐有栓[1] 崔雷[1] 赵迪[1] 

机构地区：[1]上海卫星工程研究所雷达卫星总体与仿真技术实验室,上海200240

出　　处：《上海航天》2014年第5期48-53,共6页Aerospace Shanghai

摘　　要：基于偏置相位中心(DPCA)原理,提出了一种星载合成孔径雷达(SAR)方位多通道体制收发天线尺寸的优化方法,给出了优化方法及流程。仿真结果表明:该法不仅可有效降低SAR天线有效载荷的规模(尺寸和重量),而且实现的图像质量指标优于常规设计方法。Based on the principle of displaced phase center antenna （DPCA）, a method to optimize the azimuth antenna size of multi-channel spaceborne SAR systems was studied in this paper. The design method and the flowchart were given out. The simulation results showed that performances including the size and mass designed by the method proposed were better than those gained by the conventional method, and could acquire better SAR images with a smaller SAR antenna.

关 键 词：星载SAR 多通道 天线尺寸 偏置相位中心 

分 类 号：TN958[电子电信—信号与信息处理]