中文
相关论文

相关论文: Inverse scattering transform via affine map: appli…

200 篇论文

In this paper, we develop an inverse scattering transform for the integrable focusing nonlinear Schr\"odinger (NLS) equation on the half-line subject to a class of boundary conditions. The method is based on the notions of integrable…

可精确求解与可积系统 · 物理学 2021-06-22 Cheng Zhang

The inverse acoustic scattering problems using multi-frequency backscattering far field patterns at isolated directions are studied. The underlying object could be point like scatterers, small scatterers, extended inhomogeneities and…

偏微分方程分析 · 数学 2019-10-18 Xia Ji , Xiaodong Liu

A rigorous mathematical model and an efficient computational method are proposed to solving the inverse elastic surface scattering problem which arises from the near-field imaging of periodic structures. We demonstrate how an enhanced…

偏微分方程分析 · 数学 2017-12-08 Huaian Diao , Peijun Li , Xiaokai Yuan

An original approach to the inverse scattering for Jacobi matrices was suggested in a recent paper by Volberg-Yuditskii. The authors considered quite sophisticated spectral sets (including Cantor sets of positive Lebesgue measure), however…

数学物理 · 物理学 2007-05-23 S. Kupin , F. Peherstorfer , A. Volberg , P. Yuditskii

To analyze nonlinear dynamic systems, we developed a new technique based on the square matrix method. We propose this technique called the \convergence map" for generating particle stability diagrams similar to the frequency maps widely…

加速器物理 · 物理学 2023-06-07 Li Hua Yu , Yoshiteru Hidaka , Victor Smaluk

We propose a novel iterative numerical method to solve the three-dimensional inverse obstacle scattering problem of recovering the shape of the obstacle from far-field measurements. To address the inherent ill-posed nature of the inverse…

数值分析 · 数学 2024-04-18 Junqing Chen , Bangti Jin , Haibo Liu

This investigation is concerned with the 2D acoustic scattering problem of a plane wave propagating in a non-lossy fluid host and soliciting a linear, isotropic, macroscopically-homogeneous, lossy, flat-plane layer in which the mass density…

应用物理 · 物理学 2019-05-01 Armand Wirgin

A review of a recent method is presented to construct certain exact solutions to the focusing nonlinear Schr\"odinger equation on the line with a cubic nonlinearity. With motivation by the inverse scattering transform and help from the…

可精确求解与可积系统 · 物理学 2009-08-20 Tuncay Aktosun , Theresa Busse , Francesco Demontis , Cornelis van der Mee

In this article, we study the properties of the nonlinear Fourier spectrum in order to gain better control of the temporal support of the signals synthesized using the inverse nonlinear Fourier transform (NFT). In particular, we provide…

计算物理 · 物理学 2018-09-17 Vishal Vaibhav

In this paper, we consider the inverse shape problem of recovering small and extended isotropic scatterers with a conductive boundary condition. Here, we assume that the measured far-field data is known at a fixed wave number. We will…

偏微分方程分析 · 数学 2023-10-13 Rafael Ceja Ayala , Isaac Harris

We consider the inverse scattering problem for time-harmonic acoustic waves in a medium with pointwise inhomogeneities. In the Foldy-Lax model, the estimation of the scatterers' locations and intensities from far field measurements can be…

数值分析 · 数学 2024-07-25 Giovanni S. Alberti , Romain Petit , Matteo Santacesaria

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 Frequency Domain Reflectometry (FDR) is studied as a powerful tool to detect hard or soft faults in star-shaped networks of nonuniform lossless transmission lines. Processing the FDR measurements leads to solve an inverse scattering…

数学物理 · 物理学 2009-07-10 Filippo Visco Comandini , Mazyar Mirrahimi , Michel Sorine

We consider the inverse scattering problem associated with any number of interacting modes in one-dimensional structures. The coupling between the modes is contradirectional in addition to codirectional, and may be distributed continuously…

数学物理 · 物理学 2011-11-10 Ole Henrik Waagaard , Johannes Skaar

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

We study an inverse source scattering problem for the Schr\"odinger equation with a quadratic nonlinearity. In general, uniqueness of inverse source problems can not be guaranteed at a fixed energy. Therefore, additional information is…

偏微分方程分析 · 数学 2023-03-22 Lei Zhang , Yue Zhao

The motivation of this work is an inverse problem for the acoustic wave equation, where an array of sensors probes an unknown medium with pulses and measures the scattered waves. The goal of the inversion is to determine from these…

数值分析 · 数学 2018-06-18 Liliana Borcea , Vladimir Druskin , Alexander V. Mamonov , Mikhail Zaslavsky

Motivated by applications in imaging nonlinear optical absorption by photoacoustic tomography (PAT), we study in this work inverse coefficient problems for a semilinear radiative transport equation and its diffusion approximation with…

偏微分方程分析 · 数学 2021-07-20 Ru-Yu Lai , Kui Ren , Ting Zhou

Benefiting from a relatively larger aperture's angle, and in combination with a wide transmitting bandwidth, near-field synthetic aperture radar (SAR) provides a high-resolution image of a target's scattering distribution-hot spots.…

图像与视频处理 · 电气工程与系统科学 2022-11-29 Xu Zhan , Xiaoling Zhang , Wensi Zhang , Jun Shi , Shunjun Wei , Tianjiao Zeng

We show the complete integrability and the existence of optical solitons of higher order nonlinear Schrodinger equation by inverse scattering method for a wide range of values of coefficients. This is achieved first by invoking a novel…

solv-int · 物理学 2007-05-23 Sasanka Ghosh , Sudipta Nandy