基于压缩感知的一维海面与二维舰船复合后向电磁散射快速算法研究?

摘要：

As one of the most popular numerical methods, the method of moments (MoM) is known for its high accuracy. Besides, MoM has other advantages. For example, the integral equations satisfy the Sommerfeld radiation condition automatically, the additional boundary conditions are not needed., etc. But if the wide angle problem, especially the composite electromagnetic back scattering from a ship place on sea surface, is considered, the MoM needs to solve the integral equation at every incident angle, which needs a large calculating quantity, and is time consuming. To solve this problem, a new e?cient method based on the compressive sensing and the MoM is proposed and validated in this paper. A new incident source derived through multiplying the transform matrix by the voltage matrix is first introduced. And then the measurements of the induced currents can be obtained by solving the integral equation under the new incident source. Finally the original electromagnetic currents can be recovered by using the recovery algorithms (the orthogonal matching pursuit is used in this paper). The validity and the e?ciency of the new method are demonstrated by comparing with the traditional MoM.

关键词：压缩感知、矩量法、舰船、复合后向电磁散射

分类号：TP3;TP1

资助基金：国家杰出青年科学基金61225002;航空科学基金与航空电子系统射频综合仿真航空科技重点实验室联合资助批准号:20132081015资助的课题.* Project supported by the National Science Fund for Distinguished Young Scholars of ChinaGrant 61225002;the Aeronautical Science Fund and Aviation Key Laboratory of Science and Technology on AISSS, ChinaGrant 20132081015

在线出版日期：2015-04-09（万方平台首次上网日期，不代表论文的发表时间）

页数：共1页

页码：060301-1-060301-8