中文
相关论文

相关论文: Fast imaging of scattering obstacles from phaseles…

200 篇论文

This paper is concerned with uniqueness in inverse acoustic scattering with phaseless far-field data at a fixed frequency. The main difficulty of this problem is the so-called translation invariance property of the modulus of the far-field…

偏微分方程分析 · 数学 2017-09-26 Xiaoxu Xu , Bo Zhang , Haiwen Zhang

It is well known that the modulus of the far-field pattern (or phaseless far-field pattern) is invariant under translations of the scattering obstacle if only one plane wave is used as the incident field, so the shape but not the location…

数值分析 · 数学 2017-06-07 Bo Zhang , Haiwen Zhang

This paper investigates the inverse biharmonic scattering problems of identifying the shape and location of the obstacle with phased and phaseless measurement data. A direct imaging method based on reverse time migration is proposed for…

偏微分方程分析 · 数学 2026-05-12 Tielei Zhu , Zhihao Ge

This paper concerns an inverse elastic scattering problem which is to determine the location and the shape of a rigid obstacle from the phased or phaseless far-field data for a single incident plane wave. By introducing the Helmholtz…

偏微分方程分析 · 数学 2018-12-03 Heping Dong , Jun Lai , Peijun Li

This paper is concerned with uniqueness in inverse acoustic scattering with phaseless far-field data at a fixed frequency. In our previous work ({\em SIAM J. Appl. Math. \bf78} (2018), 1737-1753), by utilizing spectral properties of the…

偏微分方程分析 · 数学 2018-06-26 Xiaoxu Xu , Bo Zhang , Haiwen Zhang

The inverse problem we consider is to reconstruct the location and shape of buried obstacles in the lower half-space of an unbounded two-layered medium in two dimensions from phaseless far-field data. A main difficulty of this problem is…

数值分析 · 数学 2021-05-26 Long Li , Jiansheng Yang , Bo Zhang , Haiwen Zhang

In this paper, we consider the inverse problem of determining the location and the shape of a sound-soft obstacle from the modulus of the far-field data for a single incident plane wave. By adding a reference ball artificially to the…

数值分析 · 数学 2018-04-17 Heping Dong , Deyue Zhang , Yukun Guo

This paper addresses the inverse obstacle scattering problem of simultaneously reconstructing the obstacle geometry and boundary conditions from multi-frequency near-field backscattering data. We first establish rigorous high-frequency…

偏微分方程分析 · 数学 2026-04-14 Jialei Li , Xiaodong Liu

This paper is concerned with the uniqueness in inverse acoustic scattering problems with the modulus of the far-field patterns co-produced by the obstacle (resp. medium) and the point sources. Based on the superposition of point sources as…

偏微分方程分析 · 数学 2020-01-08 Fenglin Sun , Deyue Zhang , Yukun Guo

This paper is concerned with uniqueness, phase retrieval and shape reconstruction methods for inverse elastic scattering problems with phaseless far field data. Systematically, we study two basic models, i.e., inverse scattering of plane…

偏微分方程分析 · 数学 2020-01-08 Xia Ji , Xiaodong Liu

This paper is concerned with uniqueness results in inverse acoustic and electromagnetic scattering problems with phaseless total-field data at a fixed frequency. Motivated by our previous work ({\em SIAM J. Appl. Math. \bf78} (2018),…

偏微分方程分析 · 数学 2019-06-13 Xiaoxu Xu , Bo Zhang , Haiwen Zhang

We consider the elastic wave scattering problem involving rigid obstacles. This work addresses the inverse problem of reconstructing the position and shape of such obstacles using far-field measurements. A novel monotonicity-based approach…

偏微分方程分析 · 数学 2025-06-06 Mengjiao Bai , Huaian Diao , Weisheng Zhou

This paper is devoted to the uniqueness in inverse acoustic scattering problems for the Helmholtz equation with phaseless far-field data. Some novel techniques are developed to overcome the difficulty of translation invariance induced by a…

偏微分方程分析 · 数学 2018-07-04 Deyue Zhang , Yukun Guo

We consider the inverse elastic scattering problems using the far field data due to one incident plane wave. A simple method is proposed to reconstruct the location and size of the obstacle using different components of the far field…

偏微分方程分析 · 数学 2019-04-09 J Liu , X. Liu , J. Sun

This paper is devoted to a novel quantitative imaging scheme of identifying impenetrable obstacles in time-harmonic acoustic scattering from the associated far-field data. The proposed method consists of two phases. In the first phase, we…

数值分析 · 数学 2023-07-05 Youzi He , Hongyu Liu , Xianchao Wang

This paper is concerned with inverse scattering of plane waves by a locally perturbed infinite plane (which is called a locally rough surface) with the modulus of the total-field data (also called the phaseless near-field data) at a fixed…

数值分析 · 数学 2018-08-28 Xiaoxu Xu , Bo Zhang , Haiwen Zhang

Similar to the obstacle or medium scattering problems, an important property of the phaseless far field patterns for source scattering problems is the translation invariance. Thus it is impossible to reconstruct the location of the…

偏微分方程分析 · 数学 2018-08-08 Xia Ji , Xiaodong Liu , Bo Zhang

This paper is dedicated to design a direct sampling method of inverse electromagnetic scattering problems, which uses multi-frequency sparse backscattering far field data for reconstructing the boundary of perfectly conducting obstacles. We…

偏微分方程分析 · 数学 2020-10-28 Tilo Arens , Xia Ji , Xiaodong Liu

This paper is concerned with a nonlinear imaging problem, which aims to reconstruct a locally perturbed, perfectly reflecting, infinite plane from intensity-only (or phaseless) far-field or near-field data. A recursive Newton iteration…

数值分析 · 数学 2017-06-06 Bo Zhang , Haiwen Zhang

This paper is concerned with uniqueness in inverse electromagnetic scattering with phaseless far-field pattern at a fixed frequency. In our previous work [{\em SIAM J. Appl. Math.} {\bf 78} (2018), 3024-3039], by adding a known reference…

偏微分方程分析 · 数学 2019-06-21 Xiaoxu Xu , Bo Zhang , Haiwen Zhang
‹ 上一页 1 2 3 10 下一页 ›