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In this lecture we describe the data analysis problem for insparlling binaries. We discuss the detection statistic, how to make realiable estimation and how to compute bias in the estimation of parameters. A combination of geometrical ideas…

广义相对论与量子宇宙学 · 物理学 2007-05-23 B. S. Sathyaprakash

This paper is concerned with the classical inverse scattering problem to recover the refractive index of a medium given near or far field measurements of scattered time-harmonic acoustic waves. It contains the first rigorous proof of…

数值分析 · 数学 2015-06-19 Thorsten Hohage , Frederic Weidling

In this paper, we consider the inverse scattering problem for recovering either an isotropic or anisotropic scatterer from the measured scattered field initiated by a point source. We propose two new imaging functionals for solving the…

偏微分方程分析 · 数学 2021-07-20 Isaac Harris , Dinh-Liem Nguyen , Thi-Phong Nguyen

An inverse scattering problem is analyzed for vowel articulation in the human vocal tract. When a unit amplitude, monochromatic, sinusoidal volume velocity is sent from the glottis towards the lips, various types of scattering data are used…

数学物理 · 物理学 2007-05-23 Tuncay Aktosun

We solve the inverse scattering problem for multidimensional vector fields and we use this result to construct the formal solution of the Cauchy problem for the second heavenly equation of Plebanski, a scalar partial differential equation…

可精确求解与可积系统 · 物理学 2007-05-23 S. V. Manakov , P. M. Santini

This paper is concerned with the inverse problem of scattering of time-harmonic acoustic waves by an inhomogeneous penetrable obstacle in a piecewise homogeneous medium. The well-posedness of the direct problem is first established by using…

偏微分方程分析 · 数学 2009-12-16 Xiaodong Liu , Bo Zhang

The use of the sine-Gordon equation as a model of magnetic flux propagation in Josephson junctions motivates studying the initial-value problem for this equation in the semiclassical limit in which the dispersion parameter $\e$ tends to…

可精确求解与可积系统 · 物理学 2007-05-23 Robert Buckingham Peter D. Miller

We consider the inverse problem of recovering the optical properties of a highly-scattering medium from acousto-optic measurements. Using such measurements, we show that the scattering and absorption coefficients of the radiative transport…

偏微分方程分析 · 数学 2016-09-27 Francis J Chung , John C Schotland

Simplified solutions of the Cox-Thompson inverse quantum scattering method at fixed energy are derived if a finite number of partial waves with only even or odd angular momenta contribute to the scattering process. Based on new formulae…

数学物理 · 物理学 2011-11-28 Tamas Palmai , Miklos Horvath , Barnabas Apagyi

We study the variational principle over an Hilbert-Einstein like action for an extended geometry taking into account torsion and non-metricity. By extending the semi-Riemannian geometry, we obtain an effective energy-momentum tensor which…

广义相对论与量子宇宙学 · 物理学 2016-03-30 Jesús Martín Romero , Mauricio Bellini , José Edgar Madriz Aguilar

This is Part II of the paper series on data-compatible T-matrix completion (DCTMC), which is a method for solving nonlinear inverse problems. Part I of the series contains theory and here we present simulations for inverse scattering of…

数学物理 · 物理学 2016-11-02 Howard W. Levinson , Vadim A. Markel

Scattering theory has had a major roll in twentieth century mathematical physics. Mathematical modeling and algorithms of direct,- and inverse electromagnetic scattering formulation due to biological tissues are investigated. The algorithms…

数学物理 · 物理学 2013-12-17 Farid Monsefi , Magnus Otterskog , Sergei Silvestrov

Inverse scattering is the process of estimating the spatial distribution of the scattering potential of an object by measuring the scattered wavefields around it. In this paper, we consider reflection tomography of high contrast objects…

信号处理 · 电气工程与系统科学 2020-12-17 Ajinkya Kadu , Hassan Mansour , Petros T. Boufounos

We study the wave equation in a bounded domain or on a compact Riemannian manifold with boundary. Assume that we are given the hyperbolic Neumann-to-Dirichlet map on the boundary corresponding to physical boundary measurements. We consider…

偏微分方程分析 · 数学 2007-08-17 Matias Dahl , Anna Kirpichnikova , Matti Lassas

We solve the inverse spectral problem for rotationally symmetric manifolds, which include the class of surfaces of revolution, by giving an analytic isomorphism from the space of spectral data onto the space of functions describing the…

数学物理 · 物理学 2016-05-18 Hiroshi Isozaki , Evgeny L. Korotyaev

In this paper, we study an inverse scattering problem associated with the time-harmonic Schr\"odinger equation where both the potential and the source terms are unknown. The source term is assumed to be a generalised Gaussian random…

偏微分方程分析 · 数学 2023-05-16 Hongyu Liu , Shiqi Ma

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

An inverse source problem for the heat equation is considered. Extraction formulae for information about the time and location when and where the unknown source of the equation firstly appeared are given from a single lateral boundary…

偏微分方程分析 · 数学 2010-02-16 Masaru Ikehata

This paper gives a remark on the Enclosure Method by considering inverse obstacle scattering problems with a single incident wave whose governing equation is given by the Helmholtz equation in two dimensions. It is concerned with the…

偏微分方程分析 · 数学 2011-09-21 Masaru Ikehata

We investigate the asymptotic relation between the inverse problems relying on the Helmholtz equation and the radiative transfer equation (RTE) as physical models, in the high-frequency limit. In particular, we evaluate the asymptotic…

数值分析 · 数学 2022-08-10 Shi Chen , Zhiyan Ding , Qin Li , Leonardo Zepeda-Núñez
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