Zobrazeno 1 - 10
of 193
pro vyhledávání: '"Kim, Arnold D."'
Autor:
Kim, Arnold D., Tsogka, Chrysoula
Motivated by applications in unmanned aerial based ground penetrating radar for detecting buried landmines, we consider the problem of imaging small point like scatterers situated in a lossy medium below a random rough surface. Both the random rough
Externí odkaz:
http://arxiv.org/abs/2303.13393
Autor:
Kim, Arnold D., Tsogka, Chrysoula
We introduce a dispersive point target model based on scattering by a particle in the far-field. The synthetic aperture imaging problem is then expanded to identify these targets and recover their locations and frequency dependent reflectivities. We
Externí odkaz:
http://arxiv.org/abs/2303.03439
Autor:
Kim, Arnold D., Tsogka, Chrysoula
We have recently introduced a modification of the multiple signal classification (MUSIC) method for synthetic aperture radar. This method depends on a tunable, user-defined parameter, $\epsilon$, that allows for quantitative high-resolution imaging.
Externí odkaz:
http://arxiv.org/abs/2208.01596
Autor:
Kim, Arnold D., Tsogka, Chrysoula
We consider synthetic aperture radar imaging of a region containing point-like targets. Measurements are the set of frequency responses to scattering by the targets taken over a collection of individual spatial locations along the flight path making
Externí odkaz:
http://arxiv.org/abs/2112.12270
It is well known that acoustic fields can produce forces on single particles, however they can also induce inter-particle forces due to multiple scattering events. This multi-particle force -- here referred to as acoustic binding -- is comparable to
Externí odkaz:
http://arxiv.org/abs/2111.08479
Publikováno v:
SIAM Multiscale Modeling & Simulation 2021
We study scattering by a high aspect ratio particle using boundary integral equation methods. This problem has important applications in nanophotonics problems, including sensing and plasmonic imaging. To illustrate the effect of parity and the need
Externí odkaz:
http://arxiv.org/abs/2105.02136
When using the boundary integral equation method to solve a boundary value problem, the evaluation of the solution near the boundary is challenging to compute because the layer potentials that represent the solution are nearly-singular integrals. To
Externí odkaz:
http://arxiv.org/abs/1810.02483
We study the evaluation of layer potentials close to the domain boundary. Accurate evaluation of layer potentials near boundaries is needed in many applications, including fluid-structure interactions and near-field scattering in nano-optics. When nu
Externí odkaz:
http://arxiv.org/abs/1706.00129
Autor:
Powell, Maia1 (AUTHOR) mpowell2@ucmerced.edu, Kim, Arnold D.1 (AUTHOR), Smaldino, Paul E.2,3 (AUTHOR)
Publikováno v:
PLoS ONE. 6/8/2023, Vol. 17 Issue 6, p1-15. 15p.
Publikováno v:
Behavior Research Methods; Aug2024, Vol. 56 Issue 5, p4682-4694, 13p