Ku波段全极化雷达昆虫体型参数反演  

Insect Body Size Estimation for Ku-Band Fully Polarimetric Entomological Radar

作　　者：李卫东 王锐[1,2,3] 胡程 张天然[1,3] 梁文哲[1,3] LI Wei-dong;WANG Rui;HU Cheng;ZHANG Tian-ran;LIANG Wen-zhe(Radar Research Lab,Schoolof Information and Electronics,Beijing Institute of Technology,Beijing 100081,China;Advanced Technology Research Institute,Beijing Institute of Technology,Jinan,Shandong 250300,China;Key Laboratory of Electronic and Information Technology in Satellite Navigation(Beijing Institute of Technology),Ministry of Education,Beijing 100081,China)

机构地区：[1]北京理工大学信息与电子学院雷达技术研究所,北京100081 [2]北京理工大学前沿技术研究院,山东济南250300 [3]卫星导航电子信息技术教育部重点实验室(北京理工大学),北京100081

出　　处：《电子学报》2021年第6期1241-1248,共8页Acta Electronica Sinica

基　　金：国家重大科研仪器研制项目(No.31727901)。

摘　　要：为实现Ku波段昆虫雷达体型参数测量,基于全极化测量装置在微波暗室测量的昆虫数据,分析了Ku波段昆虫雷达散射截面积(Radar Cross-Secion,RCS)特性.发现大昆虫为谐振区散射,无法基于RCS反演体型参数.为保证雷达体型测量准确性,必须将大昆虫识别并剔除;为此,提出相对特征相位和RCS参数联合的大昆虫辨别方法.在此基础上,分析了中小昆虫体型与特征参数的关系,发现这些特征参数均能较好的反演昆虫体长/体重,从而给出Ku波段昆虫体长、体重反演经验公式.To measure the insect body size parameters for Ku-band entomological radar,based on the insect data measured by a fully polarimetric measurement rig,the RCS(Radar Cross-Secion)characteristic of insects in Ku-band is studied.It is found that the scattering of the large insects is in the resonance region.Thus,the body size parameters of the large insect cannot be estimated from the RCS.To ensure the accuracy of body size measurement,it is necessary to identify and get rid of large insects.For this reason,a large insect discrimination method based on the relative phase of scattering eigenvalues and one of the RCS parameters is proposed.The relationships between insect body length and mass and RCS parameters for the middle and small insects are analyzed.It is found that all parameters can be well used for estimating the insect body length and mass,and the empirical formulas for insect body length and mass estimation are obtained.

关 键 词：KU波段 全极化昆虫雷达 大昆虫辨别 体型参数反演 

分 类 号：TN959.4[电子电信—信号与信息处理]