一种P波段地物后向散射系数测量及验证方法  

Measurement and verification method for P-band background scattering coefficient

作　　者：王磊[1] 谭红毅[2] 李润发 吴怡凡 WANG Lei;TAN Hongyi;LI Runfa;WU Yifan(No.38th Research Institute,China Electronics Technology Group Corporation,Hefei 230088,China;Shenyang Aircraft Industry Group Co.,Ltd.,Shenyang 110000,China)

机构地区：[1]中国电子科技集团公司第三十八研究所,合肥230088 [2]沈阳飞机工业集团有限公司,沈阳110000

出　　处：《空天预警研究学报》2024年第6期416-419,共4页JOURNAL OF AIR & SPACE EARLY WARNING RESEARCH

摘　　要：机载P波段合成孔径雷达因其穿透特性被广泛应用于军事目标揭伪、民用丛林下地形勘测等领域.鉴于现有文献少有涉及该波段在小擦地角10°~20°范围内取值,本文从雷达系统设计、飞行结果验证角度出发,通过机载平台获取大幅宽、高精度、低擦地角P波段1m分辨率图像,根据成像结果反演的处理方法,提出了一种典型地物后向散射系数计算方法.经飞行数据验证,采用本文方法获取的数据可为P波段雷达系统等效后向散射选取提供支撑.Airborne P-band synthetic aperture radar(SAR)is widely used in military target unmasking and civil jungle terrain survey because of its penetration characteristics.In view of the fact that the existing literature rarely involves the value of this band within the range of 10°~20°of small taildownangle.Starting from the perspective of radar system design and flight results verification,this paper uses the airborne platform to obtain a P-band 1 m resolution image with large width,high precision and low taildownangle,and then according to the processing method of imaging results inversion,presents a calculation method for the backscattering coefficient of typical ground objects.Finally,the flight data is employed to verify that the data obtained by the proposed method can provide support for the equivalent backscattering selection of P-band radar system.

关 键 词：P波段 合成孔径雷达 地物后向散射系数 雷达成像 

分 类 号：TN958[电子电信—信号与信息处理]