中文
相关论文

相关论文: An Improved Accurate Solver for the Time-Dependent…

200 篇论文

Obstacle detection by semantic segmentation shows a great promise for autonomous navigation in unmanned surface vehicles (USV). However, existing methods suffer from poor estimation of the water edge in the presence of visual ambiguities,…

计算机视觉与模式识别 · 计算机科学 2020-01-08 Borja Bovcon , Matej Kristan

It is challenging to design an equalizer for the complex time-frequency doubly-selective channel. In this paper, we employ the deep unfolding approach to establish an equalizer for the underwater acoustic (UWA) orthogonal frequency division…

信号处理 · 电气工程与系统科学 2023-06-02 Hao Zhao , Cui Yang , Yalu Xu , Fei Ji , Miaowen Wen , Yankun Chen

Extremely large aperture arrays (ELAAs) and millimeter-wave (mmWave) technologies are essential for achieving high data rates in future wireless communication systems. To perform precise beamforming, these systems require accurate channel…

信号处理 · 电气工程与系统科学 2026-05-22 Heling Zhang , Xiujun Zhang , Xiaofeng Zhong , Shidong Zhou

This work continues the development of the raytracing method of [1] for computing the scattered fields from metasurfaces characterized by locally periodic reflection and transmission coefficients. In this work, instead of describing the…

光学 · 物理学 2022-02-16 Scott Stewart , Yvo L. C. de Jong , Tom J. Smy , Shulabh Gupta

The underwater propagation environment for visible light signals is affected by complex factors such as absorption, shadowing, and reflection, making it very challengeable to achieve effective underwater visible light communication (UVLC)…

信号处理 · 电气工程与系统科学 2023-03-14 Younan Mou , Sicong Liu

The demand on the underwater communications is extremely increasing in searching for underwater resources, marine expedition, or environmental researches, yet there are many problems with the wireless communications because of the…

信号处理 · 电气工程与系统科学 2020-05-28 Seok-Hyeon Park , Ohyun Jo

High solar Photovoltaic (PV) penetration on distribution systems can cause over-voltage problems. To this end, an Optimal Tap Control (OTC) method is proposed to regulate On-Load Tap Changers (OLTCs) by minimizing the maximum deviation of…

系统与控制 · 计算机科学 2018-04-18 Changfu Li , Vahid R. Disfani , Zachary K. Pecenak , Saeed Mohajeryami , Jan Kleissl

Underwater environments pose significant challenges due to the selective absorption and scattering of light by water, which affects image clarity, contrast, and color fidelity. To overcome these, we introduce OceanLens, a method that models…

图像与视频处理 · 电气工程与系统科学 2024-11-21 Rajini Makam , Dhatri Shankari T M , Sharanya Patil , Suresh Sundram

Seismic coda waves, once regarded as noise, are now recognized as key indicators of wave scattering in seismograms. Aki (1969) first proposed that these waves result from small-scale heterogeneities in the Earth's interior, spurring…

地球物理 · 物理学 2025-07-11 Ning Liu , Wen-Tao Hu

We investigate multitask edge-user communication-computation resource allocation for $360^\circ$ video streaming in an edge-computing enabled millimeter wave (mmWave) multi-user virtual reality system. To balance the…

信息论 · 计算机科学 2025-05-20 Babak Badnava , Jacob Chakareski , Morteza Hashemi

In this paper, we detail the high-performance implementation of our spaceborne radar simulator for satellite oceanography. Our software simulates the sea surface and the signal to imitate, as far as possible, the measurement process,…

地球物理 · 物理学 2024-08-22 Goulven Monnier , Benjamin Camus , Yann-Hervé Hellouvry

Underwater video pairs are fairly difficult to obtain due to the complex underwater imaging. In this case, most existing video underwater enhancement methods are performed by directly applying the single-image enhancement model frame by…

计算机视觉与模式识别 · 计算机科学 2025-12-08 Qi Zhu , Jingyi Zhang , Naishan Zheng , Wei Yu , Jinghao Zhang , Deyi Ji , Feng Zhao

In this letter, the channel estimation problem is studied for wireless communication systems assisted by large intelligent surface. Due to features of assistant channel, channel estimation (CE) problem for the investigated system is shown…

信息论 · 计算机科学 2019-11-07 Junliang Lin , Gongpu Wang , Rongfei Fan , Theodoros A. Tsiftsis , Chintha Tellambura

We present an accurate quadrature formula on the sphere with less localized quadrature points for efficient numerical computation of the radiative transport equation (RTE) in the three dimensions. High accuracy of the present method…

数值分析 · 数学 2014-09-02 Hiroshi Fujiwara

We develop a new numerical scheme for solving the radiative transfer equation in a spherically symmetric system. This scheme does not rely on any kind of diffusion approximation and it is accurate for optically thin, thick, and intermediate…

天体物理仪器与方法 · 物理学 2018-05-31 Torsten Stamer , Shu-ichiro Inutsuka

Underwater images are typically characterized by color cast, haze, blurring, and uneven illumination due to the selective absorption and scattering when light propagates through the water, which limits their practical applications.…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Yuemei Li , Guojia Hou , Peixian Zhuang , Zhenkuan Pan

Wireless powered mobile edge computing (WP-MEC) has been recognized as a promising solution to enhance the computational capability and sustainable energy supply for low-power wireless devices (WDs). However, when the communication links…

信息论 · 计算机科学 2023-09-08 Nana Li , Wanming Hao , Fuhui Zhou , Zheng Chu , Shouyi Yang , Pei Xiao

Underwater images suffer from extremely unfavourable conditions. Light is heavily attenuated and scattered. Attenuation creates change in hue, scattering causes so called veiling light. General state of the art methods for enhancing image…

计算机视觉与模式识别 · 计算机科学 2018-07-12 Tomasz Łuczyński , Andreas Birk

Optimal power flow (OPF) is a key tool for planning and operations in energy grids. The line-flow constraints, generator loading effect, piece-wise cost functions, emission, and voltage quality cost make the optimization model non-convex…

最优化与控制 · 数学 2019-09-20 Alireza Barzegar , Ali Sadollah , Rong Su

Hawking radiation has become experimentally testable thanks to the many analogue systems which mimic the effects of the event horizon on wave propagation. These systems are typically dominated by dispersion, and give rise to a numerically…

广义相对论与量子宇宙学 · 物理学 2015-06-19 Scott Robertson , Ulf Leonhardt