摘要
针对SAR斜视状态使用CS算法对地面目标成像展开分析,重点分析了改进的NCS算法在处理高阶相位耦合方面的优势,按照改进的NCS算法对地面目标回波信号的成像过程进行了分析,使用计算机仿真验证了高阶耦合项位、残余相位误差随斜视角的变化关系,分析了目标回波聚焦效果,对实地模拟目标进行了成像仿真。
Based on analysis of squint looking mode SAR＇ s imaging using CSA, the superiority of NCS in high rank compensation is analyzed. The imaging process of NCS for ground target＇ s echo is analyzed. The relationship between high rank interconnection, residue phase error and the squint angel are also simulated, the concentrate effect of SAR echo is analyzed, and image of ground target is simulated by Matlab.
出处
《现代防御技术》
北大核心
2011年第5期96-101,107,共7页
Modern Defence Technology
关键词
调频变标算法
合成孔径雷达
多普勒频率
chirp scaling algorithm
synthetic aperture radar（SAR）
Doppler frequency
