ANALYSIS OF THE FIELDS SCATTERED FROMA TWO-DIMENSIONAL CYLINDER ILLUMINATED BY A POINT SOUTRE  

ANALYSIS OF THE FIELDS SCATTERED FROM A TWO－DIMENSIONAL CYLINDER ILLUMINATED BY A POINT SOURCE

作　　者：程崇虎 章文勋 

出　　处：《Journal of Southeast University(English Edition)》1994年第1期13-19,共7页东南大学学报（英文版）

摘　　要：Usually, a two-dimensional scattering problem for radar or other appli-cations means a cylindrical scatterer illuminated by a plane wave. But it is not suit-able for analysing the scattered fields in the case of EM exploration, in which the un-derground scatterer is illuminated by a three-dimensional emitter,or simply, apointsource. The latter has not yet been solved completely due to the infinitely extensionof the scatterer. In this papor, a hybrid method combining the GMT expanding incross-section and SDT for axial dimension is proposed, the numerical procedures areobviously simplified, especially for a larse crase-section. Various typical exaniplesincluding perfectly conducting and lossy dielectric cylinders with several differentcross-sections are given.ＡＮＡＬＹＳＩＳＯＦＴＨＥＦＩＥＬＤＳＳＣＡＴＴＥＲＥＤＦＲＯＭＡＴＷＯ－ＤＩＭＥＮＳＩＯＮＡＬＣＹＬＩＮＤＥＲＩＬＬＵＭＩＮＡＴＥＤＢＹＡＰＯＩＮＴＳＯＵＲＣＥＣｈｅｎｇＣｈｏｎｇｈｕ（程崇虎）ＺｈａｎｇＷｅｎｘｕｎ（章文勋）（ＳｔａｔｅＫｅｙＬａ...

关 键 词：electromagnetic scattering POINT source cylindrical SCATTERER gen-eralized MULTIPOLE TECHNIQUE spectral domain TECHNIQUE 

分 类 号：O435[机械工程—光学工程]