Spatial polarization characteristics and scattering matrix measurement of orthogonal polarization binary array radar  

作　　者：DAI HuanYao ,WANG XueSong,LI YongZhen,LUO Jia & XIAO ShunPing College of Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,China 

出　　处：《Science China(Information Sciences)》2010年第12期2687-2695,共9页中国科学（信息科学）（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 60736006,60802078);the 11th Five-Year Plan Weapons and Equipment Pre-research Project (Grant No. 51303060101-3);the Hunan Provincial Innovation Foundation for Postgraduate,the Innovation Foundation for Postgraduate of National University of Defence Technology (Grant No. B090401)

摘　　要：Polarimetry is an important trend in the development of modern radar. The technique for measuring polarization scattering property of the target is the key for polarization radar realization, but it faces challenges in engineering. Here, a new theoretical model for target scattering characteristic measurement radar, named orthogonal polarization binary array radar （OPBAR）, is proposed. The spatial polarization characteristics of the radar antennas are addressed. A new polarimetric algorithm that needs only one channel is designed. The polarization scattering matrix measurement can be implemented by processing received signal in a short time interval while antenna＇s beam mechanically scans the target. Through compactness field microwave dark room experiment, measurments of dynamic broadband polarimetry on OPBAR have been conducted and the validity of research work has been demonstrated. The result is helpful to exploiting the capability of current radar systems and enhancing their information acquiring and processing capacity.Polarimetry is an important trend in the development of modern radar. The technique for measuring polarization scattering property of the target is the key for polarization radar realization, but it faces challenges in engineering. Here, a new theoretical model for target scattering characteristic measurement radar, named orthogonal polarization binary array radar （OPBAR）, is proposed. The spatial polarization characteristics of the radar antennas are addressed. A new polarimetric algorithm that needs only one channel is designed. The polarization scattering matrix measurement can be implemented by processing received signal in a short time interval while antenna＇s beam mechanically scans the target. Through compactness field microwave dark room experiment, measurments of dynamic broadband polarimetry on OPBAR have been conducted and the validity of research work has been demonstrated. The result is helpful to exploiting the capability of current radar systems and enhancing their information acquiring and processing capacity.

关 键 词：orthogonal polarization binary array radar （OPBAR） spatial polarization characteristics radar target signatures polarization scattering matrix polarization measurement mechanical scanning 

分 类 号：TN958[电子电信—信号与信息处理]