三维平面分层非磁化等离子体介质散射和逆散射
Three-Dimensional Scattering and Inverse Scattering Problems in Planarly Layered Unmagnetized Plasma Media
摘要
在过去的几十年里，由于其在军事和民事上的广泛应用前景，电磁正演和反演算法吸引了大量研究人员的兴趣，许多正演和反演算法陆续地被提出和改进。其中biconjugategradientfastFouiertransform(BCGS-FFT)正演算法成功地运用到了平面分层介质的电磁散射问题中，variationalBorniterativemethod(VBIM)反演算法能够在均匀空间背景下重构出散射体的电介质参数。本文采用BCGS-FFT正演算法来求解冷的非磁化等离子体介质背景下扰动区域的散射场，采用VBIM算法重构扰动区域的相对介电常数、电导率、等离子体频率和碰撞频率。 正演过程中，由于采用了... In the past few decades, electromagnetic scattering and inverse scattering algorithms have drawn massive interests due to its civilian and military application. Lots of forward and inverse algorithms have been proposed and improved. There is an algorithm called Biconjugate gradient fast Fourier transform (BCGS-FFT) that have been successfully applied in the homogeneous space electromagnetic scatte...