条带SAR成像对偏航角最大误差要求的理论分析  

Analysis of Requirement to the Yaw Angle Error in Stripmap SAR Imaging

作　　者：方志红[1] 张长耀[1] 俞根苗[1] 

机构地区：[1]中国电子科技集团公司第38研究所成像中心,安徽合肥230031

出　　处：《雷达科学与技术》2004年第1期33-36,共4页Radar Science and Technology

摘　　要：SAR成像中 ,偏航角误差是影响成像质量的重要因素。本文根据回波信号压缩波形的主瓣偏移、二次相位误差、三次相位误差以及积分旁瓣比等图像质量指标的最大允许值 ,通过详细推导 。Since the operating principle of SAR is based on the knowledge of relative motion between radar and target, the yaw angle error degrades the image greatly. In this paper, analytical equations of yaw angle error requirement in stripmap SAR imaging are derived which take into account the complicated azimuth motion errors, expressed as allowable maximum values of the main lobe shift, quadratic phase error, cubic phase error and the integrated side lobe ratio (ISLR).

关 键 词：条带SAR 偏航角 成像 相位误差 运动补偿 

分 类 号：TN958[电子电信—信号与信息处理]