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In this paper, we study the inverse acoustic medium scattering problem to reconstruct the unknown inhomogeneous medium from far field patterns of scattered waves. We propose the reconstruction scheme based on the Kalman filter, which…

偏微分方程分析 · 数学 2021-10-19 Takashi Furuya , Roland Potthast

The pre-asymptotic analysis of the multichannel scattering problem for particles with an arbitrary spin and short-range interactions has been presented. The complete operator-valued dependence of the scattered differential flux on the…

量子物理 · 物理学 2021-07-26 S. E. Korenblit , S. V. Lovtsov , A. V. Sinitskaya

Inverse Compton Scattering at shallow angles can be used to tune the spectrum and increase the brightness of the emitted radiation. Here, we report on the demonstration of emission of visible light by a 4.7 MeV $e$-beam crossing a 780 nm…

加速器物理 · 物理学 2025-09-08 B. H. Schaap , M. Lenz , P. Musumeci

Electromagnetic scattering on a sphere is one of the most fundamental problems, which has a closed form analytical solution in the form of Mie series. Being initially formulated for a plane incident wave, the formalism can be extended to…

光学 · 物理学 2021-06-11 Yuval Kashtera , Eran Falek , Pavel Ginzburg

Inverse scattering problems have many important applications. In this paper, given limited aperture data, we propose a Bayesian method for the inverse acoustic scattering to reconstruct the shape of an obstacle. The inverse problem is…

偏微分方程分析 · 数学 2019-05-30 Zhaoxiang Li , Zhiliang Deng , Jiguang Sun

Small-angle X-ray and neutron scattering are widely used to investigate soft matter and biophysical systems. The experimental errors are essential when assessing how well a hypothesized model fits the data. Likewise, they are important when…

数据分析、统计与概率 · 物理学 2022-04-20 Andreas Haahr Larsen , Martin Cramer Pedersen

In this paper, the inverse scattering transform for the integrable discrete nonlocal PT symmetric nonlinear Schr\"odinger equation with nonzero boundary conditions is presented. According to the two different signs of symmetry reduction and…

数学物理 · 物理学 2024-07-24 Ya-Hui Liu , Rui Guo , Jian-Wen Zhang

Matrix inversion problems are often encountered in experimental physics, and in particular in high-energy particle physics, under the name of unfolding. The true spectrum of a physical quantity is deformed by the presence of a detector,…

机器学习 · 统计学 2020-09-08 Pietro Vischia

We consider the nucleon-nucleon scattering problem by applying time-ordered perturbation theory to the Lorentz invariant formulation of baryon chiral perturbation theory. Using a symmetry preserving higher derivative form of the effective…

核理论 · 物理学 2016-11-03 J. Behrendt , E. Epelbaum , J. Gegelia , Ulf-G. Meißner , A. Nogga

This paper is concerned with the electromagnetic inverse scattering problem that aims to determine the location and shape of anisotropic scatterers from far field data (at a fixed frequency). We study the orthogonality sampling method which…

偏微分方程分析 · 数学 2019-11-05 Isaac Harris , Dinh-Liem Nguyen

We show that an inverse scattering problem for a semilinear wave equation can be solved on a manifold having an asymptotically Minkowskian infinity, that is, scattering functionals determine the topology, differentiable structure, and the…

偏微分方程分析 · 数学 2025-01-17 Spyros Alexakis , Hiroshi Isozaki , Matti Lassas , Teemu Tyni

The problem of the anisotropic Inverse Compton scattering between a monochromatic photon beam and relativistic electrons is revisited and formally solved without approximations. Solutions are given for the single scattering with an electron…

天体物理学 · 物理学 2016-08-30 G. Brunetti

In this paper we demonstrate a computational method to solve the inverse scattering problem for a star-shaped, smooth, penetrable obstacle in 2D. Our method is based on classical ideas from computational geometry. First, we approximate the…

An Inverse Scattering Method is developed for the Camassa-Holm equation. As an illustration of our approach the solutions corresponding to the reflectionless potentials are explicitly constructed in terms of the scattering data. The main…

可精确求解与可积系统 · 物理学 2007-05-23 Adrian Constantin , Vladimir S. Gerdjikov , Rossen I. Ivanov

This paper proposes a neural network approach for solving two classical problems in the two-dimensional inverse wave scattering: far field pattern problem and seismic imaging. The mathematical problem of inverse wave scattering is to…

计算物理 · 物理学 2019-12-02 Yuwei Fan , Lexing Ying

We study the fixed angle inverse scattering problem of determining a sound speed from scattering measurements corresponding to a single incident wave. The main result shows that a sound speed close to constant can be stably determined by…

偏微分方程分析 · 数学 2023-04-25 Shiqi Ma , Leyter Potenciano-Machado , Mikko Salo

We consider an inverse scattering problem to identify the locations or shapes of unknown anomalies from scattering parameter data collected by a small number of dipole antennas. Most of researches does not considered the influence of dipole…

数值分析 · 数学 2018-09-18 Won-Kwang Park

We propose a scheme for imaging periodic surfaces using a superlens. By employing an inverse scattering model and the transformed field expansion method, we derive an approximate reconstruction formula for the surface profile, assuming…

数值分析 · 数学 2024-03-05 Peijun Li , Yuliang Wang

In this paper we introduce a new fix point iteration scheme for solving nonlinear electromagnetic scattering problems. The method is based on a spectral formulation of Maxwell's equations called the Bidirectional Pulse Propagation…

经典物理 · 物理学 2026-03-27 Per Kristen Jakobsen

Inverse scattering from discrete targets with the single-input-multiple-output (SIMO), multiple-input-single-output (MISO) or multiple-input-multiple-output (MIMO) measurements is analyzed by compressed sensing theory with and without the…

数学物理 · 物理学 2015-05-13 Albert C. Fannjiang