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Astrophysical radio signals are excellent probes of extreme physical processes that emit them. However, to reach Earth, electromagnetic radiation passes through the ionised interstellar medium (ISM), introducing a frequency-dependent time…

天体物理仪器与方法 · 物理学 2023-11-10 Jan Novotný , Karel Adámek , M. A. Clark , Mike Giles , Wesley Armour

We propose a time-multiplexed DS-DBR/SOA-gated system to deliver low-power fast tuning across S-/C-/L-bands. Sub-ns switching is demonstrated, supporting 122$\times$50 GHz channels over 6.05 THz using AI techniques.

信号处理 · 电气工程与系统科学 2020-03-13 Thomas Gerard , Christopher Parsonson , Zacharaya Shabka , Polina Bayvel , Domaniç Lavery , Georgios Zervas

Convolutional Neural Networks are extensively used in a wide range of applications, commonly including computer vision tasks like image and video classification, recognition, and segmentation. Recent research results demonstrate that…

信号处理 · 电气工程与系统科学 2020-05-11 Marco Carreras , Gianfranco Deriu , Luigi Raffo , Luca Benini , Paolo Meloni

Large scientific collaborations often share huge volumes of data around the world. Consequently a significant amount of network bandwidth is needed for data replication and data access. Users in the same region may possibly share resources…

网络与互联网体系结构 · 计算机科学 2023-07-19 Z. Deng , A. Sim , K. Wu , C. Guok , D. Hazen , I. Monga , F. Andrijauskas , F. Wuerthwein , D. Weitzel

Creating geometric digital twins (gDT) for as-built roads still faces many challenges, such as low automation level and accuracy, limited asset types and shapes, and reliance on engineering experience. A novel scan-to-building information…

计算机视觉与模式识别 · 计算机科学 2024-06-19 Yuexiong Ding , Mengtian Yin , Ran Wei , Ioannis Brilakis , Muyang Liu , Xiaowei Luo

With the rapid development of network protocol, TCP/IP has been widely applied in various OS systems because of its advantages of high-speed network transmission and standardization. Furthermore, TCP/IP has the functions of retransmission…

网络与互联网体系结构 · 计算机科学 2018-06-26 Hangxu Li , Jie Zhang , Jingzi Gu , Xiaolu Ji , Yang Li , Jun Hu , Yunhua Sun , Xiaoshan Jiang , Zheng Wang

The design of mission scenarios for the flyby investigation of nearby star systems by probes launched using directed energy is addressed. Multiple probes are launched with a fixed launch infrastructure, and download of scientific data…

天体物理仪器与方法 · 物理学 2022-06-29 David Messerschmitt , Philip Lubin , Ian Morrison

Gi-Fi stands for Gigabit Wireless. Gi-Fi is a wireless transmission system which is ten times faster than other technology and its chip delivers short-range multigigabit data transfer in a local environment. Gi-Fi is a wireless technology…

网络与互联网体系结构 · 计算机科学 2013-07-03 Jyoti Tewari , Swati Arya

K-nearest neighbor search is one of the fundamental tasks in various applications and the hierarchical navigable small world (HNSW) has recently drawn attention in large-scale cloud services, as it easily scales up the database while…

硬件体系结构 · 计算机科学 2022-07-13 Ji-Hoon Kim , Yeo-Reum Park , Jaeyoung Do , Soo-Young Ji , Joo-Young Kim

We present our experiences using cloud computing to support data-intensive analytics on satellite imagery for commercial applications. Drawing from our background in high-performance computing, we draw parallels between the early days of…

分布式、并行与集群计算 · 计算机科学 2017-02-15 Michael S. Warren , Samuel W. Skillman , Rick Chartrand , Tim Kelton , Ryan Keisler , David Raleigh , Matthew Turk

Modern Graphics Processing Units (GPUs) are now considered accelerators for general purpose computation. A tight interaction between the GPU and the interconnection network is the strategy to express the full potential on capability…

The potential application of advanced digital communication schemes in a future upgrade of the CMS Tracker readout optical links is currently being investigated at CERN. We show experimentally that multi-Gbit/s data rates are possible over…

仪器与探测器 · 物理学 2010-04-28 Stefanos Dris , Costas Foudas , Karl Gill , Robert Grabit , Daniel Ricci , Jan Troska , Francois Vasey

Following the scale-up of new radio (NR) complexity in 5G and beyond, the physical layer's computing load on base stations is increasing under a strictly constrained latency and power budget; base stations must process > 20-Gb/s uplink…

信号处理 · 电气工程与系统科学 2025-08-11 Marco Bertuletti , Yichao Zhang , Alessandro Vanelli-Coralli , Luca Benini

Convolutional neural network (CNN) offers significant accuracy in image detection. To implement image detection using CNN in the internet of things (IoT) devices, a streaming hardware accelerator is proposed. The proposed accelerator…

计算机视觉与模式识别 · 计算机科学 2017-07-12 Li Du , Yuan Du , Yilei Li , Mau-Chung Frank Chang

In principle, a network can transfer data at nearly the speed of light. Today's Internet, however, is much slower: our measurements show that latencies are typically more than one, and often more than two orders of magnitude larger than the…

网络与互联网体系结构 · 计算机科学 2015-05-14 Ankit Singla , Balakrishnan Chandrasekaran , P. Brighten Godfrey , Bruce Maggs

Incoherent dedispersion is a computationally intensive problem that appears frequently in pulsar and transient astronomy. For current and future transient pipelines, dedispersion can dominate the total execution time, meaning its…

天体物理仪器与方法 · 物理学 2015-06-03 Benjamin R. Barsdell , Matthew Bailes , David G. Barnes , Christopher J. Fluke

The upcoming Square Kilometer Array (SKA) is expected to produce humongous amount of data for undertaking H{\sc i}~science. We have developed an MPI-based {\sc Python} pipeline to deal with the large data efficiently with the present…

Interplanetary networks (IPNs) present unique challenges such as extreme delay, high loss, and frequent disruptions that severely degrade the performance of conventional transport protocols like Transmission Control Protocol (TCP) and Quick…

网络与互联网体系结构 · 计算机科学 2026-03-12 Jianhao Yu , Ye Li , Qingfang Jiang , Shuai Liu , Wenfeng Li , Kanglian Zhao

We live in a data-centric world where we are heading to generate close to 200 Zettabytes of data by the year 2025. Our data processing requirements have also increased as we push to build data processing frameworks that can process large…

分布式、并行与集群计算 · 计算机科学 2021-12-21 Corne Lukken , Animesh Trivedi

Modern GPUs are equipped with tensor cores (TCs) that are commonly used for matrix multiplication in artificial intelligence workloads. However, because they have high computational throughput, they can lead to significant performance gains…

分布式、并行与集群计算 · 计算机科学 2025-09-01 Brian Curless , Michael Gowanlock