中文
相关论文

相关论文: Electrosensing of inhomogeneous targets

200 篇论文

Signals recorded from neurons with extracellular planar sensors have a wide range of waveforms and amplitudes. This variety is a result of different physical conditions affecting the ion currents through a cellular membrane. The…

We predict the emergence of novel collective electronic excitations in warm dense matter with an inhomogeneous electronic structure based on first-principles calculations. The emerging modes are controlled by the imposed perturbation…

等离子体物理 · 物理学 2022-01-21 Zh. A. Moldabekov , T. Dornheim , A. Cangi

The aim of this paper is to provide a fast and efficient procedure for (real-time) target identification in imaging based on matching on a dictionary of precomputed generalized polarization tensors (GPTs). The approach is based on some…

最优化与控制 · 数学 2013-02-27 Habib Ammari , Thomas Boulier , Josselin Garnier , Wenjia Jing , Hyœnbæ Kang , Han Wang

The paper aims at proposing the first shape identification and classification algorithm in echolocation. The approach is based on first extracting geometric features from the reflected waves and then matching them with precomputed ones…

数值分析 · 计算机科学 2013-08-27 Habib Ammari , Minh Phuong Tran , Han Wang

We consider a scenario where a team of robots with heterogeneous sensors must track a set of hostile targets which induce sensory failures on the robots. In particular, the likelihood of failures depends on the proximity between the targets…

机器人学 · 计算机科学 2021-05-11 Siddharth Mayya , Ragesh K. Ramachandran , Lifeng Zhou , Gaurav S. Sukhatme , Vijay Kumar

Image segmentation is a concept that is often used for object detection. This detection has difficulty detecting objects with backgrounds that have many colors and even have a color similar to the object being detected. This study aims to…

图像与视频处理 · 电气工程与系统科学 2021-05-26 Shoffan Saifullah , Andiko Putro Suryotomo , Bambang Yuwono

Integrated sensing and communications (ISAC) has opened up numerous game-changing opportunities for future wireless systems. In this paper, we develop a novel ISAC scheme that utilizes the diffusion model to sense the electromagnetic (EM)…

信号处理 · 电气工程与系统科学 2024-10-22 Yuhua Jiang , Feifei Gao , Shi Jin , Tie Jun Cui

This work addresses the inverse problem of electrocardiography from a new perspective, by combining electrical and mechanical measurements. Our strategy relies on the defini-tion of a model of the electromechanical contraction which is…

数值分析 · 数学 2015-03-24 Cesare Corrado , Jean-Frédéric Gerbeau , Philippe Moireau

Underwater acoustic target detection in remote marine sensing operations is challenging due to complex sound wave propagation. Despite the availability of reliable sonar systems, target recognition remains a difficult problem. Various…

声音 · 计算机科学 2023-07-27 Jarin Ritu , Ethan Barnes , Riley Martell , Alexandra Van Dine , Joshua Peeples

Starting from the Heisenberg-Euler effective Lagrangian, we determine the photon current and photon polarization tensor in inhomogeneous, slowly varying electromagnetic fields. To this end, we consider background field configurations…

高能物理 - 唯象学 · 物理学 2022-06-02 Felix Karbstein , Rashid Shaisultanov

We discuss several issues regarding material homogeneity and strain compatibility for materially uniform thin elastic shells from the viewpoint of a 3-dimensional theory, with small thickness, as well as a 2-dimensional Cosserat theory. A…

数学物理 · 物理学 2015-06-26 Ayan Roychowdhury , Anurag Gupta

Wavefront sensing from an extended object is a challenging task since the phase to be sensed is disturbed by the phase generated from the structure of the extended object. To address this problem, a general wavefront sensor was proposed.…

光学 · 物理学 2021-10-04 Changwei Li , Yanting Lu , Sijiong Zhang

Using the Jones matrix formalism, crystal optical properties of inhomogeneous material consisting of a pile of weakly birefringent plates are analysed in relation to the cell model adopted in polarization tomography of 3D dielectric tensor…

光学 · 物理学 2007-09-04 O. Kushnir , P. Nek , R. Vlokh , N. Kukhtarev

To overcome the constraints of the underwater environment and improve the accuracy and robustness of underwater target detection models, this paper develops a specialized dataset for underwater target detection and proposes an efficient…

计算机视觉与模式识别 · 计算机科学 2025-05-22 Chang Liu

This paper proposes a theoretical framework for estimating a target-object shape, the location of which is not given, by using mobile distance sensors the locations of which are also unknown. Typically, mobile sensors are mounted on…

信号处理 · 电气工程与系统科学 2018-03-07 Hiroshi Saito , Tatsuaki Kimura

The investigation of paramagnetic species (such as point defects, dopants, and impurities) in solid-state electronic devices is significant because of their effect on device performance. Conventionally, these species are detected and imaged…

材料科学 · 物理学 2015-05-20 Itai Katz , Matthias Fehr , Alexander Schnegg , Klaus Lips , Aharon Blank

The appearance of nonlinear effects in elastic wave propagation is one of the most reliable and sensitive indicators of the onset of material damage. However, these effects are usually very small and can be detected only using cumbersome…

Realistic applications in metal detection involve multiple inhomogeneous conducting permeable objects and the aim of this paper is to characterise such objects by polarizability tensors. We show that, for the eddy current model, the leading…

偏微分方程分析 · 数学 2018-09-25 P. D. Ledger , W. R. B. Lionheart , A. A. S. Amad

Media with symmetric inhomogeneity have been of great interest due to numerous effects which occur when electromagnetic waves propagate through such media. In general, the inhomogeneity of a certain medium means that the refraction index of…

光学 · 物理学 2022-08-30 Mher Davtyan

Various studies have confirmed the possibility of identifying the location of a set of small inhomogeneities via a direct sampling method; however, when their permeability differs from that of the background, their location cannot be…

数值分析 · 数学 2018-01-09 Won-Kwang Park