高频区金属球定标体RCS的近场修正  

Near Field Revision for RCS of Metal Sphere in High-frequency Region

作　　者：梁子长 李鸣 岳慧 武亚君 

机构地区：[1]电磁散射重点实验室,上海200438 [2]上海无线电设备研究所,上海200090

出　　处：《制导与引信》2012年第3期20-24,共5页Guidance & Fuze

摘　　要：采用多层快速多极子方法计算常用金属球定标体RCS随观测距离的变化,并利用高频近似原理进一步分析确认了其变化趋势,给出了球面波及局部照射情况下金属球近场RCS的拟合修正公式,可为目标近场RCS测量数据标定提供依据。The RCS of metal sphere varied with observed distance was calculated by multilevel fast multipole method,and using the high-frequency approximation,the varying trend of RCS in near field was analyzed and affirmed.The near field RCS approximated formula of metal sphere under spherical incident wave or partly irradiation condition was presented,which can be used to calibrate the near field RCS measured data.

关 键 词：雷达散射截面 金属球 近场 

分 类 号：TN011[电子电信—物理电子学]