4 citations · 7 across the 11 of their papers we have counts for
11 papers
A novel sampling method for reconstruction of a moving point acoustic source in
Guanqiu Ma, Shuang Li, Hongxia Guo
In this paper, we introduce a novel sampling method to recovering the trajectory of a moving point source in R^3, where both the spatial location and emission moment of the moving…
Reconstruct the ambient noise source from the multi-frequency sparse correlation data
Hao Gu, Hongxia Guo, Xiang Xu +1
In this paper, we develop a novel multi-frequency factorization method to reconstruct the spatial support of the ambient noise source. The proposed method only requires sparse corr…
A direct sampling method for inverse time-dependent electromagnetic source problems: reconstruction of the radiating time and spatial support
Fenglin Sun, Hongxia Guo
This paper investigates inverse source problems for time-dependent electromagnetic waves governed by Maxwell's equations. After applying the Fourier transform with respect to time,…
A frequency-domain method to inverse moving source problem with unknown radiating moment
Guanqiu Ma, Hongxia Guo, Guanghui Hu
This paper introduces a multi-frequency factorization method for imaging a time-dependent source, specifically to recover its spatial support and the associated excitation instants…
Imaging a moving point source in R^3 from the time of arrival at sparse observation points
Guanqiu Ma, Haonan Zhang, Hongxia Guo
In this paper, we introduce a novel numerical method for reconstructing the trajectory within three-dimensional space, where both the emission moment and spatial location of the po…
Inverse wave-number-dependent source problems for the Helmholtz equation with partial information on radiating period
Hongxia Guo, Guanghui Hu, Guanqiu Ma
This paper addresses a factorization method for imaging the support of a wave-number-dependent source function from multi-frequency data measured at a finite pair of symmetric rece…
Inverse wave-number-dependent source problems for the Helmholtz equation
Hongxia Guo, Guanghui Hu
This paper is concerned with the multi-frequency factorization method for imaging the support of a wave-number-dependent source function. It is supposed that the source function is…
Imaging a moving point source from multi-frequency data measured at one and sparse observation points (part II): near-field case in 3D
Guanqiu Ma, Hongxia Guo, Guanghui Hu
In this paper, we introduce a frequency-domain approach to extract information on the trajectory of a moving point source. The method hinges on the analysis of multi-frequency near…
Well-posedness and convergence analysis of PML method for time-dependent acoustic scattering problems over a locally rough surface
Hongxia Guo, Guanghui Hu
We aim to analyze and calculate time-dependent acoustic wave scattering by a bounded obstacle and a locally perturbed non-selfintersecting curve. The scattering problem is equivale…
Imaging a moving point source from multi-frequency data measured at one and sparse observation directions (part I): far-field case
Hongxia Guo, Guanghui Hu, Guanqiu Ma
We propose a multi-frequency algorithm for imaging the trajectory of a moving point source from one and sparse far-field observation directions in the frequency domain. The startin…
Direct sampling method to inverse wave-number-dependent source problems (part I): determination of the support of a stationary source
Hongxia Guo, Guanghui Hu, Mengjie Zhao
This paper is concerned with a direct sampling method for imaging the support of a frequency-dependent source term embedded in a homogeneous and isotropic medium. The source term i…