利用电磁平面波成像周期性障碍物的逆时偏移方法
Reverse time migration for imaging periodic obstacles with electromagnetic plane wave
AI总结:
本文提出利用固定频率电磁平面波在障碍物阵列单侧测量数据的逆时偏移(RTM)成像方法,基于Rayleigh展开等理论分析了分辨率,并通过数值实验验证了其成像效率与抗噪鲁棒性。
摘要:
我们提出逆时偏移(RTM)方法,仅使用固定频率下障碍物阵列下侧或上侧的测量数据对周期性障碍物进行成像。我们基于Rayleigh展开的传播部分、Helmholtz-Kirchhoff方程以及测量面到障碍物阵列的距离,分析了下侧和上侧RTM方法的分辨率。我们给出了一些数值实验,以证明我们成像泛函的竞争性效率及对噪声的鲁棒性。
英文摘要:
We propose reverse time migration (RTM) methods for the imaging of periodic obstacles using only measurements from lower or upper side of the obstacle arrays at a fixed frequency. We analyze the resolution of the lower side and upper side RTM methods in terms of the propagating part of the Rayleigh expansion, Helmholtz-Kirchhoff equation and the distance of the measurement surface to the obstacle arrays. We give some numerical experiments to justify the competitive efficiency of our imaging functionals and the robustness against noises.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。