Monostatic sampling methods in limited‐aperture configuration

作者：

Highlights：

• Sampling-type methods operated at single- and multiple-frequency are proposed for monostatic imaging in two-dimensional limited-aperture scattering problems.

• Asymptotic structures of the methods are verified to establish the effect of measurement range on the imaging performance of proposed schemes.

• Asymptotic structures of the methods are compared to those of the direct sampling methods in limited-aperture configuration.

• Various numerical simulations using synthetic data are presented to validate the theoretical results.

摘要

•Sampling-type methods operated at single- and multiple-frequency are proposed for monostatic imaging in two-dimensional limited-aperture scattering problems.•Asymptotic structures of the methods are verified to establish the effect of measurement range on the imaging performance of proposed schemes.•Asymptotic structures of the methods are compared to those of the direct sampling methods in limited-aperture configuration.•Various numerical simulations using synthetic data are presented to validate the theoretical results.

论文关键词：Helmholtz equation,Direct sampling method,Monostatic imaging,Limited aperture,Multiple frequencies,Bessel function

论文评审过程：Received 28 October 2021, Revised 27 February 2022, Accepted 1 April 2022, Available online 25 April 2022, Version of Record 25 April 2022.

论文官网地址：https://doi.org/10.1016/j.amc.2022.127170