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The introduction of silicon chipsets with the capability of processing incoming optical packet traffic, creates a new generation of packet-optical nodes, the whiteboxes. Their inherent functionality of carrying pluggable coherent…

网络与互联网体系结构 · 计算机科学 2025-02-05 Constantine A. Kyriakopoulos

The next generation of collider experiments require tracking detectors with extreme performance capabilities in terms of spatial resolution (tens of $\mu \text{m}$), radiation hardness ($10^{17}~1~$MeV n$_{eq}/$cm$^2$) and timing resolution…

仪器与探测器 · 物理学 2023-01-05 Gian Matteo Cossu , Adriano Lai

A field programmable gate array (FPGA) based timing and trigger control system has been developed for the Dynamic Compression Sector (DCS) user facility located at the Advanced Photon Source (APS) at Argonne National Laboratory. The DCS is…

仪器与探测器 · 物理学 2022-05-04 Shefali Saxena , Daniel R. Paskvan , Nicholas R. Weir , Nicholas Sinclair

It is widely recognised that over-reliance on GNSS (e.g GPS) for time synchronisation represents an acute threat to modern society, and a diversity of alternatives are required to mitigate the threat of an outage. This paper proposes a GNSS…

信号处理 · 电气工程与系统科学 2023-07-28 Stephen Robson

This paper presents the design and testing of a time-stretching-based time-to-digital converter (TDC) implemented with discrete components. The TDC utilizes capacitor charging and discharging to achieve a time resolution of under 100 ps…

仪器与探测器 · 物理学 2025-06-23 Yanbo Chu , Zhicai Zhang

Precise temperature measurement at micro/nanoscale is crucial across various domains including physical sciences, chemical processes, industrial production, medical diagnosis, weather forecasting, electronics, and biology. Micro/nanoscale…

应用物理 · 物理学 2025-03-25 Hassan Irshad Bhatti

This paper presents the performance of an AC transmission switching (TS) based real-time contingency analysis (RTCA) tool that is introduced in Part I of this paper. The approach quickly proposes high quality corrective switching actions…

We present a novel FPGA-based bismuth germanate (BGO) time-of-flight (TOF) digitizer, implemented on an FPGA (VC707 evaluation kit, Xilinx). This digitizer was designed to address the recently highlighted characteristics of BGO, which…

仪器与探测器 · 物理学 2024-10-15 Daehee Lee , Sun Il Kwon

The TT-PET collaboration is developing an MRI-compatible small animal PET scanner in which the sensitive element is a monolithic silicon pixel ASIC targeting 30 ps RMS time resolution. The photon-detection technique is based on a stack of…

The Fast Tracker (FTK) is a proposed upgrade to the ATLAS trigger system that will operate at full Level-1 output rates and provide high quality tracks reconstructed over the entire detector by the start of processing in Level-2. FTK solves…

This paper presents a novel time synchronization attack (TSA) model for the Global Positioning System (GPS) based on clock data behavior changes in a higher-order derivative domain. Further, the time synchronization attack rejection and…

信号处理 · 电气工程与系统科学 2021-03-02 Erick Schmidt , Junhwan Lee , Nikolaos Gatsis , David Akopian

This paper presents the design, implementation, and performance evaluation of LUCAS, a low-power, ultra-low jitter ASIC optimized for SiPM readout in Time-of-Flight Computed Tomography (ToF-CT) applications. Leveraging a novel preamplifier…

信号处理 · 电气工程与系统科学 2025-02-06 Seyed Arash Katourani

In this article it is presented an FPGA based $M$ulti-$V$oltage $T$hreshold (MVT) system which allows of sampling fast signals ($1-2$ ns rising and falling edge) in both voltage and time domain. It is possible to achieve a precision of time…

Silent Data Errors (SDEs) from time-zero defects and aging degrade safety-critical systems. Functional testing detects SDE-related faults but is expensive to simulate. We present a unified spatio-temporal graph convolutional network…

机器学习 · 计算机科学 2025-09-09 Shaoqi Wei , Senling Wang , Hiroshi Kai , Yoshinobu Higami , Ruijun Ma , Tianming Ni , Xiaoqing Wen , Hiroshi Takahashi

The future ground-based gamma-ray observatory Cherenkov Telescope Array (CTA) will feature multiple types of imaging atmospheric Cherenkov telescopes, each with thousands of pixels. To be affordable, camera concepts for these telescopes…

天体物理仪器与方法 · 物理学 2019-08-14 S. Funk , D. Jankowsky , H. Katagiri , M. Kraus , A. Okumura , H. Schoorlemmer , A. Shigenaka , H. Tajima , L. Tibaldo , G. Varner , A. Zink , J. Zorn

The PICOSEC Micromegas detector is a precise-timing gaseous detector that combines a Cherenkov radiator, a semi-transparent photocathode and a Micromegas amplification stage, targeting time resolutions of tens of picoseconds for minimum…

In this paper, we consider communication over the bandwidth limited analog white Gaussian noise channel using non-orthogonal pulses. In particular, we consider non-orthogonal transmission by signaling samples at a rate higher than the…

信息论 · 计算机科学 2015-12-09 Ather Gattami , Emil Ringh , Johan Karlsson

Analog-to-digital converters (ADCs) are key components of digital signal processing. Classical samplers in this framework are controlled by a global clock. At high sampling rates, clocks are expensive and power-hungry, thus increasing the…

信号处理 · 电气工程与系统科学 2023-01-06 Hila Naaman , Nimrod Glazer , Moshe Namer , Daniel Bilik , Shlomi Savariego , Yonina C. Eldar

We study time-series classification (TSC), a fundamental task of time-series data mining. Prior work has approached TSC from two major directions: (1) similarity-based methods that classify time-series based on the nearest neighbors, and…

机器学习 · 计算机科学 2022-01-07 Daochen Zha , Kwei-Herng Lai , Kaixiong Zhou , Xia Hu

This paper introduces the Time Synchronization Attack Rejection and Mitigation (TSARM) technique for Time Synchronization Attacks (TSAs) over the Global Positioning System (GPS). The technique estimates the clock bias and drift of the GPS…

系统与控制 · 计算机科学 2018-02-07 Ali Khalajmehrabadi , Nikolaos Gatsis , David Akopian , Ahmad F. Taha