星载扫描模式合成孔径雷达成像算法研究  

The Study on Space-borne ScanSAR Imaging Algorithm

作　　者：高骥[1] 于晋[2] 

机构地区：[1]航天东方红卫星有限公司 [2]中国资源卫星应用中心

出　　处：《航天返回与遥感》2009年第1期43-47,52,共6页Spacecraft Recovery & Remote Sensing

摘　　要：文章在分析SPECAN成像处理算法基础上,应用改进的SPECAN算法进行星载扫描SAR成像。给出了对Burst图像内和子测绘带间Burst图像方位向像素间隔归一化方法,通过计算沿距离向的方位尺度变换因子实现整个测绘带方位向像素间隔的归一化。最后通过对点目标成像仿真,验证了算法的有效性。This paper took modified SPECAN algorithm for spaceborne ScanSAR imaging based on analysis of the original SPECAN algorithm. A method was given to normalize the azimuth pixel spacing in inner- bursts by calculating the azimuth chirp scaling factor, in which the normalization of inter- bursts was under consideration. Finally the computer simulating for point target demonstrated the validity of the algorithm.

关 键 词：成像算法 方位压缩 像素间隔 合成孔径雷达 卫星 

分 类 号：TN957.52[电子电信—信号与信息处理] TP334.22[电子电信—信息与通信工程]