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Pulsar timing is a promising technique for detecting low frequency sources of gravitational waves. Historically the focus has been on the detection of diffuse stochastic backgrounds, such as those formed from the superposition of weak…

高能天体物理现象 · 物理学 2010-08-18 Vincent Corbin , Neil J. Cornish

This thesis describes the design and implementation of several instruments for digitizing and processing analogue astronomical signals collected using radio telescopes. Modern radio telescopes have significant digital signal processing…

天体物理仪器与方法 · 物理学 2011-09-05 Peter L. McMahon

Three pulsar timing arrays are now producing high quality data sets. As reviewed in this paper, these data sets are been processed to 1) develop a pulsar-based time standard, 2) search for errors in the solar system planetary ephemeris and…

太阳与恒星天体物理 · 物理学 2015-06-11 G. Hobbs

PyRadiomics-cuda is a GPU-accelerated extension of the PyRadiomics library, designed to address the computational challenges of extracting three-dimensional shape features from medical images. By offloading key geometric computations to GPU…

分布式、并行与集群计算 · 计算机科学 2026-02-20 Jakub Lisowski , Piotr Tyrakowski , Szymon Zyguła , Krzysztof Kaczmarski

We describe a new and efficient technique which we call sideband or phase-modulation searching that allows one to detect short period binary pulsars in observations longer than the orbital period. The orbital motion of the pulsar during…

天体物理学 · 物理学 2009-11-07 Scott M. Ransom , James M. Cordes , Stephen S. Eikenberry

Molecular similarity search has been widely used in drug discovery to identify structurally similar compounds from large molecular databases rapidly. With the increasing size of chemical libraries, there is growing interest in the efficient…

The increased bandwidth coupled with the large numbers of antennas of several new radio telescope arrays has resulted in an exponential increase in the amount of data that needs to be recorded and processed. In many cases, it is necessary…

天体物理仪器与方法 · 物理学 2024-11-26 Wei Liu , Mitchell C. Burnett , Dan Werthimer , Jonathon Kocz

The measurement of optical ultrafast laser pulses is done indirectly because the required bandwidth to measure these pulses exceeds the bandwidth of current electronics. As a result, this measurement problem is often posed as a 1-D phase…

光学 · 物理学 2023-04-28 Daniel J Kane , Andrei B. Vakhtin

I discuss methods and current software packages for radio searches for pulsars and short-duration transients. I then describe the properties of the current pulsar population and the status of and predictions for ongoing and future surveys.…

太阳与恒星天体物理 · 物理学 2015-05-27 Maura McLaughlin

This work provides a proof of concept for the computation of pure gluonic amplitudes in quantum chromodynamics (QCD) on graphics processing units (GPUs). The implementation relies on the Berends-Giele recursion algorithm and, for the first…

高能物理 - 唯象学 · 物理学 2025-08-04 Juan M. Cruz-Martinez , Giuseppe De Laurentis , Mathieu Pellen

Reconstructing a signal from squared linear (rank-one quadratic) measurements is a challenging problem with important applications in optics and imaging, where it is known as phase retrieval. This paper proposes two new phase retrieval…

信息论 · 计算机科学 2016-09-21 Cheng Qian , Nicholas D. Sidiropoulos , Kejun Huang , Lei Huang , H. C. So

Synthetic Aperture Radar (SAR) plays a vital role in remote sensing due to its ability to capture high-resolution images regardless of weather conditions or daylight. However, to transform the raw SAR signals into interpretable imagery,…

量子物理 · 物理学 2026-05-07 Khalil Al Salahat , Mohamad El Moussawi , Ali J. Ghandour

Current and upcoming radio-interferometers are expected to produce volumes of data of increasing size that need to be processed in order to generate the corresponding sky brightness distributions through imaging. This represents an…

天体物理仪器与方法 · 物理学 2023-01-18 Claudio Gheller , Giuliano Taffoni , David Goz

Object detection in astronomical images, generically referred to as source finding, is often performed before the object characterisation stage in astrophysical processing work flows. In radio astronomy, source finding has historically been…

天体物理仪器与方法 · 物理学 2019-01-16 Luis Lucas , Tim Staley , Anna Scaife

We developed a GPU based single-pulse search pipeline (GSP) with candidate-archiving database. Largely based upon the infrastructure of Open source pulsar search and analysis toolkit (PRESTO), GSP implements GPU acceleration of the…

天体物理仪器与方法 · 物理学 2022-01-19 Shanping You , Pei Wang , Xuhong Yu , Xiaoyao Xie , Di Li , Zhijie Liu , Zhichen Pan , Youling Yue , Lei Qian , Bin Zhang , Zonghao Chen

The Commensal Radio Astronomy Five-hundred-meter Aperture Spherical radio Telescope (FAST) Survey (CRAFTS) utilizes the novel drift-scan commensal survey mode of FAST and can generate billions of pulsar candidate signals. The human experts…

This research introduces an FPGA-based hardware accelerator to optimize the Singular Value Decomposition (SVD) and Fast Fourier transform (FFT) operations in AI models. The proposed design aims to improve processing speed and reduce…

硬件体系结构 · 计算机科学 2025-04-15 Hong Ding , Chia Chao Kang , SuYang Xi , Zehang Liu , Xuan Zhang , Yi Ding

An efficient hardware implementation for Simultaneous Localization and Mapping (SLAM) methods is of necessity for mobile autonomous robots with limited computational resources. In this paper, we propose a resource-efficient FPGA…

信号处理 · 电气工程与系统科学 2023-05-31 Keisuke Sugiura , Hiroki Matsutani

Accelerating Human Action Recognition (HAR) efficiently for real-time surveillance and robotic systems on edge chips remains a challenging research field, given its high computational and memory requirements. This paper proposed an…

计算机视觉与模式识别 · 计算机科学 2023-11-08 Azzam Alhussain , Mingjie Lin

Partial wave analysis is a key technique in hadron spectroscopy. The use of unbinned likelihood fits on large statistics data samples and ever more complex physics models makes this analysis technique computationally very expensive.…

数据分析、统计与概率 · 物理学 2011-08-31 Niklaus Berger