【作者】 杜红梅； 陈明生； 吴先良； 梅诣偲；

【Author】 DU HONG-MEI;CHEN MING-SHENG;WU XIAN-LIANG;MEI YI-CAI;Key Lab of Intelligent Computing & Signal Processing,Anhui University;Department of Physics and Electronic Engineering,Hefei Normal University;School of Information Sci and Tech,University of Science and Technology of China;

【机构】 安徽大学计算智能与信号处理教育部重点实验室； 合肥师范学院物理与电子工程系； 中国科技大学信息科学与技术学院；

【摘要】 对渐近波形估计技术进行了深入研究,应用有理逼近中的误差分析法,对计算误差进行了估计,从而提出了一种有效计算带宽的估计方法,并构造了一种任意给定频段自适应扫频计算方法。对不同几何形态的三维导体目标、色散介质目标的宽带电磁散射特性进行了分析,并将计算结果与解析解、矩量法逐点计算进行了比较,验证了算法的有效性。更多还原

【Abstract】 The asymptotic waveform evaluation(AWE)technique is deeply discussed. The error of AWE is estimated by the error analysis of rational approximation,and an efficient bandwidth estimation approach is finally proposed,which is used to form a new adaptive frequency-sweep analysis algorithm for a given frequency band.The broadband electromagnetic scattering analysis of differently shaped three dimensional(3-D)perfectly electrically conducting(PEC)objects and dispersive dielectric object is considered. The effectiveness of the proposed method is proved by comparing the numerical results with that of the analytical solution and the direct solution method.更多还原