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The main focus of beam alignment is to find the optimal beam which yields the largest received signal strength (RSS) with faster speed.In this paper, we demonstrate an efficient beam alignment scheme with our testbed. The algorithm we…

信号处理 · 电气工程与系统科学 2020-03-09 Junyeol Hong , Hyeonjin Chung , Sunwoo Kim

Successful detection of weak signals is a universal challenge for numerous technical and biological systems and crucially limits signal transduction and transmission. Stochastic resonance (SR) has been identified to have the potential to…

信息论 · 计算机科学 2015-04-21 Patrick Krauss , Claus Metzner , Konstantin Tziridis , Holger Schulze

This study presents a weakly supervised method for identifying faults in infrared images of substation equipment. It utilizes the Faster RCNN model for equipment identification, enhancing detection accuracy through modifications to the…

计算机视觉与模式识别 · 计算机科学 2023-11-21 Anjali Sharma , Priya Banerjee , Nikhil Singh

A real-time autoencoder-based anomaly detection system using semi-supervised machine learning has been developed for the online Data Quality Monitoring system of the electromagnetic calorimeter of the CMS detector at the CERN LHC. A novel…

仪器与探测器 · 物理学 2024-07-31 Abhirami Harilal , Kyungmin Park , Manfred Paulini

Local feature detection is a key ingredient of many image processing and computer vision applications, such as visual odometry and localization. Most existing algorithms focus on feature detection from a sharp image. They would thus have…

计算机视觉与模式识别 · 计算机科学 2022-11-30 Zhenjun Zhao , Yu Zhai , Ben M. Chen , Peidong Liu

Radially self-accelerating light exhibits an intensity pattern that describes a spiraling trajectory around the optical axis as the beam propagates. In this article, we show in simulation and experiment how such beams can be used to perform…

光学 · 物理学 2021-04-08 Shashi Prabhakar , Stephen Plachta , Marco Ornigotti , Robert Fickler

A superconducting radio-frequency (SRF) photo injector is in operation at the electron linac for beams with high brilliance and low emittance (ELBE) radiation center and generates continuous wave (CW) electron beams with high average…

加速器物理 · 物理学 2023-03-22 S. Ma , A. Arnold , P. Michel , P. Murcek , A. Ryzhov , J. Schaber , R. Steinbruck , P. Evtushenko , J. Teichert , W. Hillert , R. Xiang , J. Zhu

Low Level RF (LLRF) control systems of linear accelerators (LINACs) are typically implemented with heterodyne based architectures, which have complex analog RF mixers for up and down conversion. The Gen 3 Radio Frequency System-on-Chip…

加速器物理 · 物理学 2024-05-15 C. Liu , R. Herbst , B. Hong , L. Ruckman , E. A. Nanni

A design study of the diagnostics of a high brightness linac, based on X-band structures, and a plasma accelerator stage, has been delivered in the framework of the EuPRAXIA@SPARC_LAB project. In this paper, we present a conceptual design…

This paper presents a unified analytical and optimization framework for Standard Condition Number (SCN)-based detection in MIMO Integrated Sensing and Communication (ISAC) systems operating under noise uncertainty. Conventional detectors…

信号处理 · 电气工程与系统科学 2026-03-13 Alex Obando , Tharindu Udupitiya , Saman Atapattu , Kandeepan Sithamparanathan

Falls have serious consequences and are prevalent in acute hospitals and nursing homes caring for older people. Most falls occur in bedrooms and near the bed. Technological interventions to mitigate the risk of falling aim to automatically…

This paper investigates a fluid antenna (FA) enhanced integrated sensing and communication (ISAC) system consisting of a base station (BS), multiple single-antenna communication users, and one point target, where the BS is equipped with FAs…

信号处理 · 电气工程与系统科学 2024-07-09 Tian Hao , Changxin Shi , Yinghong Guo , Bin Xia , Feng Yang

Suppression of beam losses is essential for successful operation of high-intensity linac. Historically, the values of the field amplitudes and phases of the side-coupled, 805-MHz LANSCE linac modules are maintained using a well-known…

加速器物理 · 物理学 2020-02-26 Y. K. Batygin , F. E. Shelley , H. A. Watkins

The problem of sequentially detecting a moving anomaly which affects different parts of a sensor network with time is studied. Each network sensor is characterized by a non-anomalous and anomalous distribution, governing the generation of…

统计理论 · 数学 2020-07-30 Georgios Rovatsos , George V. Moustakides , Venugopal V. Veeravalli

The problem of quickest growing dynamic anomaly detection in sensor networks is studied. Initially, the observations at the sensors, which are sampled sequentially by the decision maker, are generated according to a pre-change distribution.…

统计理论 · 数学 2020-02-04 Georgios Rovatsos , Venugopal V. Veeravalli , Don Towsley , Ananthram Swami

Recent findings suggest that abnormal operating conditions of equipment in the oil and gas supply chain represent a large fraction of anthropogenic methane emissions. Thus, effective mitigation of emissions necessitates rapid identification…

应用统计 · 统计学 2021-09-06 Amir Montazeri , Xiaochi Zhou , John D. Albertson

As charged particle bunches become shorter and more intense, the effects of nonlinear intra-bunch collective interactions such as space charge forces and bunch-to-bunch influences such as wakefields and coherent synchrotron radiation also…

加速器物理 · 物理学 2022-03-23 Alexander Scheinker , Spencer Gessner

We propose a novel method for blind bistatic radar parameter estimation (RPE), which enables integrated sensing and communications (ISAC) by allowing passive (receive) base stations (BSs) to extract radar parameters (ranges and velocities…

信号处理 · 电气工程与系统科学 2024-08-29 Kuranage Roche Rayan Ranasinghe , Kengo Ando , Hyeon Seok Rou , Giuseppe Thadeu Freitas de Abreu , Andreas Bathelt

At present, a variety of image-based diagnostics are used in particle accelerator systems. Often times, these are viewed by a human operator who then makes appropriate adjustments to the machine. Given recent advances in using convolutional…

加速器物理 · 物理学 2016-12-20 A. L. Edelen , S. G. Biedron , S. V. Milton , J. P. Edelen

The knowledge of channel covariance matrices is of paramount importance to the estimation of instantaneous channels and the design of beamforming vectors in multi-antenna systems. In practice, an abrupt change in channel covariance matrices…

信号处理 · 电气工程与系统科学 2021-09-10 Runnan Liu , Liang Liu , Dazhi He , Wenjun Zhang , Erik G. Larsson