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INVERSE SOURCE PROBLEMS FOR THE STOCHASTIC WAVE EQUATIONS: FAR-FIELD PATTERNS 期刊论文 OAI收割
SIAM JOURNAL ON APPLIED MATHEMATICS, 2022, 卷号: 82, 期号: 4, 页码: 1113-1134
作者: Li, Jianliang; Li, Peijun; Wang, Xu

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收藏 | 浏览/下载：15/0 | 提交时间：2023/02/07

Key words inverse source problem stochastic wave equation Gaussian random field pseudodifferential operator far-field pattern uniqueness

A SAMPLING TYPE METHOD IN AN ELECTROMAGNETIC WAVEGUIDE 期刊论文 OAI收割
INVERSE PROBLEMS AND IMAGING, 2021, 卷号: 15, 期号: 4, 页码: 745-762
作者: Meng, Shixu

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收藏 | 浏览/下载：25/0 | 提交时间：2021/10/26

sampling method waveguide Maxwell's equations inverse scattering electromagnetic

Inverse Fluid-solid Interaction Scattering Problem Using Phased and Phaseless Far Field Data 期刊论文 OAI收割
ACTA MATHEMATICAE APPLICATAE SINICA-ENGLISH SERIES, 2020, 卷号: 36, 期号: 1, 页码: 74-94
作者: Ji, Xia; Jia, Yun-fei; Liu, Xiao-dong

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收藏 | 浏览/下载：15/0 | 提交时间：2020/05/24

fluid-solid interaction scattering direct sampling method far field pattern phaseless phase retrieval

AN APPROXIMATE FACTORIZATION METHOD FOR INVERSE ACOUSTIC SCATTERING WITH PHASELESS TOTAL-FIELD DATA 期刊论文 OAI收割
SIAM JOURNAL ON APPLIED MATHEMATICS, 2020, 卷号: 80, 期号: 5, 页码: 2271-2298
作者: Zhang, Bo; Zhang, Haiwen

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收藏 | 浏览/下载：9/0 | 提交时间：2021/01/14

inverse acoustic scattering approximate factorization method phaseless total-field data asymptotic behavior of phaseless total-field operator

Recognition of Endovascular Manipulations using Recurrent Neural Networks 会议论文 OAI收割
德国, 7.23-7.27
作者: Li, Rui-Qi; Zhou, Xiao-Hu; Bian, Gui-Bin; Xie, Xiao-Liang; Hou, Zeng-Guang

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收藏 | 浏览/下载：5/0 | 提交时间：2022/01/14

Direct sampling methods for inverse elastic scattering problems 期刊论文 OAI收割
INVERSE PROBLEMS, 2018, 卷号: 34, 期号: 3, 页码: 22
作者: Ji, Xia; Liu, Xiaodong; Xi, Yingxia

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收藏 | 浏览/下载：22/0 | 提交时间：2018/07/30

elastic scattering sampling method far field pattern limited-aperture problem

UNIQUENESS IN INVERSE SCATTERING PROBLEMS WITH PHASELESS FAR-FIELD DATA AT A FIXED FREQUENCY. II 期刊论文 OAI收割
SIAM JOURNAL ON APPLIED MATHEMATICS, 2018, 卷号: 78, 期号: 6, 页码: 3024-3039
作者: Xu, Xiaoxu; Zhang, Bo; Zhang, Haiwen

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收藏 | 浏览/下载：22/0 | 提交时间：2019/03/05

uniqueness inverse scattering phaseless far-field pattern Dirichlet boundary conditions impedance boundary conditions inhomogeneous medium locally rough surfaces

A novel sampling method for multiple multiscale targets from scattering amplitudes at a fixed frequency 期刊论文 OAI收割
INVERSE PROBLEMS, 2017, 卷号: 33, 期号: 8, 页码: 20
作者: Liu, Xiaodong

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收藏 | 浏览/下载：14/0 | 提交时间：2018/07/30

acoustic scattering scattering amplitude bessel functions multiple multiscale

Patterns of strong coupling for LHC searches 期刊论文 OAI收割
JOURNAL OF HIGH ENERGY PHYSICS, 2016, 期号: 11, 页码: 141
作者: Liu, D; Pomarol, A; Rattazzi, R; Riva, F; Liu, D (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing, Peoples R China.

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收藏 | 浏览/下载：14/0 | 提交时间：2017/10/13

Beyond Standard Model Effective Field Theories Global Symmetries Technicolor And Composite Models

Far-field focusing of laser beam based on digital image processing techniques (EI CONFERENCE) 会议论文 OAI收割
Optoelectronic Imaging and Multimedia Technology, October 18, 2010 - October 20, 2010, Beijing, China
作者: Zhao S.; Tian Y.-Z.; Liu L.-S.; Guo J.; Zhang H.-Y.

收藏 | 浏览/下载：20/0 | 提交时间：2013/03/25

In order to lead the laser beam transmit in the atmosphere convergently an experiment of laser focus at the distance of 450m and 300m has been operated in the outdoor place. The actual manipulations are as follows: Firstly the laser was collimated by a beam expander then the near-parallel laser beam was transmitted with a Galileo telescope system and the distance between the concave lens and the convex lens can be tuned through a precise displacement platform so the focus of the system changed due to the tiny displacement of the concave lens. Secondly the average power of the laser spot can be measured using power meter the power is 47.67mW and the standard deviation is 0.67mW while the focal length is 450m. Thirdly the energy distribution was found through the laser beam analyzer. The spot images were saved using the beam analyzer then the saved image can be processed with Matlab software afterwards. The function named EDGE and Sobel operator was used in the pre-processing of the saved image then method of median filter was used in the course of image de-noising and 53H filter was adopted in the signal analysis. The diameter of laser spot was obtained by the method above the diameter is 5.56mm and the standard deviation is 0.24mm. The spot center excursion is 0.56mm it is 10.43% of the total diameter of the laser spot. At last the key factors of the energy dissipation in the focusing system can be summarized as follows: restriction of the diffraction limit attenuation in the atmosphere geometrical aberration of optical system and the diffraction limit and the geometrical aberration are significant in the three factors above so we can reduce the impact of the both factors during the design of optical system. The reliable referenced data of the system design can be acquired through the primary experiment research. 2010 SPIE.