Details

Autor(en) / Beteiligte

• Li, Jingzhi
• Liu, Hongyu
• Wang, Yuliang

Titel

Recovering an electromagnetic obstacle by a few phaseless backscattering measurements

Ist Teil von

• Inverse problems, 2017-03, Vol.33 (3), p.35011

Ort / Verlag

IOP Publishing

Erscheinungsjahr

2017

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We consider the electromagnetic scattering from a convex polyhedral PEC or PMC obstacle due to a time-harmonic incident plane wave. It is shown that the modulus of the far-field pattern in the backscattering aperture possesses a certain local maximum behavior. Using the local maximum indicating phenomena, one can determine the exterior unit normal directions, as well as the face areas, of the front faces of the obstacle. Then we propose a recovery scheme of reconstructing the obstacle by phaseless backscattering measurements. This work significantly extends our recent study in Li and Liu (2014 preprint) from two dimensions and acoustic scattering to the more challenging three dimensions and electromagnetic scattering.