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Radio astronomy relies on bespoke, experimental and innovative computing solutions. This will continue as next-generation telescopes such as the Square Kilometre Array (SKA) and next-generation Very Large Array (ngVLA) take shape. Under…

天体物理仪器与方法 · 物理学 2026-01-13 Nicholas J. Pritchard , Richard Dodson , Andreas Wicenec

The Square Kilometre Array (SKA) will be sensitive enough to discover all of the pulsars in the Milky Way that are beamed towards Earth. Already in the initial deployment, SKA Phase 1, it will make significant advances in pulsar science. In…

天体物理仪器与方法 · 物理学 2018-08-22 E. F. Keane

Compressive focal plane arrays (FPA) enable cost-effective high-resolution (HR) imaging by acquisition of several multiplexed measurements on a low-resolution (LR) sensor. Multiplexed encoding of the visual scene is typically performed via…

图像与视频处理 · 电气工程与系统科学 2023-09-21 Alper Güngör , M. Umut Bahceci , Yasin Ergen , Ahmet Sözak , O. Oner Ekiz , Tolga Yelboga , Tolga Çukur

Two major areas of modern radio astronomy, namely, explosive astrophysical transient phenomena and observations of cosmological structures, are driving the design of aperture arrays towards large numbers of low-cost elements consisting of…

天体物理仪器与方法 · 物理学 2025-01-15 Nithyanandan Thyagarajan

We propose a harmonic surface mapping algorithm (HSMA) for electrostatic pairwise sums of an infinite number of image charges. The images are induced by point sources within a box due to a specific boundary condition which can be…

计算物理 · 物理学 2018-08-16 Qiyuan Zhao , Jiuyang Liang , Zhenli Xu

The current state of the art of Simultaneous Localisation and Mapping, or SLAM, on low power embedded systems is about sparse localisation and mapping with low resolution results in the name of efficiency. Meanwhile, research in this field…

机器人学 · 计算机科学 2019-02-14 Konstantinos Boikos , Christos-Savvas Bouganis

Spatial computing architectures pose an attractive alternative to mitigate control and data movement overheads typical of load-store architectures. In practice, these devices are rarely considered in the HPC community due to the steep…

分布式、并行与集群计算 · 计算机科学 2021-04-23 Tiziano De Matteis , Johannes de Fine Licht , Torsten Hoefler

Hamming weights of sparse and long binary vectors are important modules in many scientific applications, particularly in spiking neural networks that are of our interest. To improve both area and latency of their FPGA implementations, we…

神经与进化计算 · 计算机科学 2021-05-03 Kaveh Akbarzadeh-Sherbaf , Mikaeel Bahmani , Danial Ghiaseddin , Saeed Safari , Abdol-Hossein Vahabie

The sensitivity of blind gamma-ray pulsar searches in multiple years worth of photon data, as from the Fermi LAT, is primarily limited by the finite computational resources available. Addressing this "needle in a haystack" problem, we here…

高能天体物理现象 · 物理学 2014-10-17 Holger J. Pletsch , Colin J. Clark

Molecular dynamics (MD) simulation is one of the past decade's most important tools for enabling biology scientists and researchers to explore human health and diseases. However, due to the computation complexity of the MD algorithm, it…

计算物理 · 物理学 2016-11-15 Jason Cong , Zhenman Fang , Hassan Kianinejad , Peng Wei

As the largest radio telescope in the world, the Square Kilometre Array (SKA) will lead the next generation of radio astronomy. The feats of engineering required to construct the telescope array will be matched only by the techniques…

LiDAR (Light Detection and Ranging) SLAM (Simultaneous Localization and Mapping) serves as a basis for indoor cleaning, navigation, and many other useful applications in both industry and household. From a series of LiDAR scans, it…

机器人学 · 计算机科学 2022-01-03 Keisuke Sugiura , Hiroki Matsutani

Recent advancements in large language models (LLMs) boasting billions of parameters have generated a significant demand for efficient deployment in inference workloads. The majority of existing approaches rely on temporal architectures that…

机器学习 · 计算机科学 2024-04-09 Hongzheng Chen , Jiahao Zhang , Yixiao Du , Shaojie Xiang , Zichao Yue , Niansong Zhang , Yaohui Cai , Zhiru Zhang

When completed the Square Kilometre Array (SKA) will feature an unprecedented rate of image generation. While previous generations of telescopes have relied on human expertise to extract scientifically interesting information from the…

天体物理仪器与方法 · 物理学 2016-01-19 C. Hollitt , M. Johnston-Hollitt , S. Dehghan , M. Frean , T. Bulter-Yeoman

The Fourier Domain Acceleration Search (FDAS) and Fourier Domain Jerk Search (FDJS) are proven matched filtering techniques for detecting binary pulsar signatures in time-domain radio astronomy datasets. Next generation radio telescopes…

天体物理仪器与方法 · 物理学 2024-06-24 Jack White , Karel Adámek , Jayanta Roy , Scott Ransom , Wesley Armour

Synchrotron radio halos at the center of merging galaxy clusters provide the most spectacular and direct evidence of the presence of relativistic particles and magnetic fields associated with the intracluster medium. The study of polarized…

宇宙学与河外天体物理 · 物理学 2015-06-15 F. Govoni , M. Murgia , H. Xu , H. Li , M. L. Norman , L. Feretti , G. Giovannini , V. Vacca

Parallax measurements of pulsars allow for accurate measurements of the interstellar electron density and contribute to accurate tests of general relativity using binary systems. The Square Kilometre Array (SKA) will be an ideal instrument…

天体物理仪器与方法 · 物理学 2015-05-27 R. Smits , S. J. Tingay , N. Wex , M. Kramer , B. Stappers

It is commonplace in cosmology to analyze fields projected onto the celestial sphere, and in particular density fields that are defined by a set of points e.g. galaxies. When performing an harmonic-space analysis of such data (e.g. an…

宇宙学与河外天体物理 · 物理学 2024-04-02 Antón Baleato Lizancos , Martin White

Weak gravitational lensing measurements are traditionally made at optical wavelengths where many highly resolved galaxy images are readily available. However, the Square Kilometre Array (SKA) holds great promise for this type of measurement…

宇宙学与河外天体物理 · 物理学 2015-01-19 Prina Patel , Ian Harrison , Sphesihle Makhathini , Filipe Abdalla , David Bacon , Michael L. Brown , Ian Heywood , Matt Jarvis , Oleg Smirnov

The search for gravitational waves using Pulsar Timing Arrays (PTAs) is a computationally expensive complex analysis that involves source-specific noise studies. As more pulsars are added to the arrays, this stage of PTA analysis will…

高能天体物理现象 · 物理学 2022-11-28 Lorenzo Speri , Nataliya K. Porayko , Mikel Falxa , Siyuan Chen , Jonathan R. Gair , Alberto Sesana , Stephen R. Taylor