电子学报2017，Vol.45Issue(6)：1327-1333,7.DOI:10.3969/j.issn.0372-2112.2017.06.007
耦合目标近场散射外推技术研究
Near-Far Field Extrapolation Technique for Coupling Targets
摘要
Abstract
In allusion to the problem that the scattering pattern of coupled target is distorted under the conditions of distance not satisfy the far field.By analyzing the relationship between near-field and far-field of coupling targets,an extrapolation method of "multiple-transmitter and multiple-receiving" is proposed.Firstly,the bistatic data of near-field at each angles are measured and extrapolated.Then the extrapolated data can be equivalent to "far-field transmitting,near-field receiving" data by the reciprocity theorem.Secondly,these data should be extrapolated again due to meet the "far-field transmitter,far-field receiving" conditions.Finally,diagonal elements is selescted to be the monostatic radar cross section (RCS)at each angles.By creating a dihedral angle model which has strong coupling mechanisms,through the simulation with FEKO and MATLAB,the far-field RCS is compared with the result of extrapolation by multiple-transmitter and multiple-receiving.The results obtained by this method show a good agreement with the RCS of the far-field,and the average error is less than 1dB,which verifies the method is effectiveness.关键词
近场散射/远场RCS/耦合目标/外推方法Key words
near-field scattering/far-field RCS/coupled target/extrapolation method分类
信息技术与安全科学引用本文复制引用
党娇娇,李南京,胡楚锋,宋祖勋..耦合目标近场散射外推技术研究[J].电子学报,2017,45(6):1327-1333,7.基金项目
国家自然科学基金(No.61371023,No.61201320,No.61571368) （No.61371023,No.61201320,No.61571368）
