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相关论文: Towards exascale real-time RFI mitigation

200 篇论文

In this paper, we propose a combined Online Feedback Optimization (OFO) and dynamic estimation approach for a real-time power grid operation under time-varying conditions. A dynamic estimation uses grid measurements to generate the…

系统与控制 · 电气工程与系统科学 2022-05-17 Miguel Picallo , Dominic Liao-McPherson , Saverio Bolognani , Florian Dörfler

In a search for short timescale astrophysical transients in time-domain data, radio-frequency interference (RFI) causes both large quantities of false positive candidates and a significant reduction in sensitivity if not correctly…

天体物理仪器与方法 · 物理学 2021-12-07 V. Morello , K. M. Rajwade , B. W. Stappers

The growing demand for real-time data processing in applications such as neural networks and embedded control systems has spurred the search for faster, more efficient alternatives to traditional electronic systems. In response, we…

Inexpensive cloud services, such as serverless computing, are often vulnerable to straggling nodes that increase end-to-end latency for distributed computation. We propose and implement simple yet principled approaches for straggler…

分布式、并行与集群计算 · 计算机科学 2020-01-22 Vipul Gupta , Dominic Carrano , Yaoqing Yang , Vaishaal Shankar , Thomas Courtade , Kannan Ramchandran

Power-based side-channel is a serious security threat to the System on Chip (SoC). The secret information is leaked from the power profile of the system while a cryptographic algorithm is running. The mitigation requires efforts from both…

密码学与安全 · 计算机科学 2021-07-06 Pantea Kiaei , Yuan Yao , Patrick Schaumont

DIFT (Dynamic Information Flow Tracking) has been a hot topic for more than a decade. Unfortunately, existing hardware DIFT approaches have not been widely used neither by research community nor by hardware vendors. It is due to two major…

There is an emerging need for efficient solutions to stochastic AC Optimal Power Flow ({AC-}OPF) to ensure optimal and reliable grid operations in the presence of increasing demand and generation uncertainty. This paper presents a highly…

系统与控制 · 电气工程与系统科学 2020-06-11 Ilyes Mezghani , Sidhant Misra , Deepjyoti Deka

The next generation of Adaptive Optics (AO) systems on large telescopes will require immense computation performance and memory bandwidth, both of which are challenging with the technology available today. The objective of this work is to…

天体物理仪器与方法 · 物理学 2018-08-03 Avinash Surendran , Mahesh P. Burse , A. N. Ramaprakash , Padmakar S. Parihar

We investigate the effectiveness of the statistical radio frequency interference (RFI) mitigation technique spectral kurtosis (SK) in the face of simulated realistic RFI signals. SK estimates the kurtosis of a collection of M power values…

天体物理仪器与方法 · 物理学 2022-09-14 Evan T. Smith , Ryan Lynch , D. J. Pisano

Time-of-Flight (ToF) sensors provide efficient active depth sensing at relatively low power budgets; among such designs, only very sparse measurements from low-resolution sensors are considered to meet the increasingly limited power…

计算机视觉与模式识别 · 计算机科学 2025-04-24 Andrea Conti , Matteo Poggi , Valerio Cambareri , Martin R. Oswald , Stefano Mattoccia

Radio spectroscopy provides a unique inspection perspective for solar and space weather research, which can reveal the plasma and energetic electron information in the solar corona and inner heliosphere. However, Radio-Frequency…

太阳与恒星天体物理 · 物理学 2023-02-22 Peijin Zhang , André R. Offringa , Pietro Zucca , Kamen Kozarev , Mattia Mancini

Atmospheric wavefront prediction based on previous wavefront sensor measurements can greatly enhance the performance of adaptive optics systems. We propose an optimal linear approach based on the Empirical Orthogonal Functions (EOF)…

天体物理仪器与方法 · 物理学 2017-07-04 Olivier Guyon , Jared Males

Exascale systems will suffer failures hourly. HPC programmers rely mostly on application-level checkpoint and a global rollback to recover. In recent years, techniques reducing the number of rolling back processes have been implemented via…

分布式、并行与集群计算 · 计算机科学 2018-06-06 Kiril Dichev , Kirk Cameron , Dimitrios Nikolopoulos

Techniques to improve the data quality of interferometric radio observations are considered. Fundaments of fringe frequencies in the uv-plane are discussed and filters are used to attenuate radio-frequency interference (RFI) and off-axis…

天体物理仪器与方法 · 物理学 2012-04-02 A. R. Offringa , A. G. de Bruyn , S. Zaroubi

Recognition of human manipulation actions in real-time is essential for safe and effective human-robot interaction and collaboration. The challenge lies in developing a model that is both lightweight enough for real-time execution and…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Enes Erdogan , Eren Erdal Aksoy , Sanem Sariel

Simultaneous localization and mapping (SLAM) based on laser sensors has been widely adopted by mobile robots and autonomous vehicles. These SLAM systems are required to support accurate localization with limited computational resources. In…

机器人学 · 计算机科学 2022-09-01 Yifan Duan , Jie Peng , Yu Zhang , Jianmin Ji , Yanyong Zhang

The rapid evolution of wearable technologies, such as AR glasses, demands compact, energy-efficient sensors capable of high-precision measurements in dynamic environments. Traditional Frequency-Modulated Continuous Wave (FMCW) Laser…

信号处理 · 电气工程与系统科学 2025-06-13 Alexander Zimmer , Johannes Meyer , Enkelejda Kasneci

Power system networks are often modeled as homogeneous graphs, which limits the ability of graph neural network (GNN) to capture individual generator features at the same nodes. By introducing the proposed virtual node-splitting strategy,…

系统与控制 · 电气工程与系统科学 2025-07-22 Thuan Pham , Xingpeng Li

Real-time trajectory optimization for nonlinear constrained autonomous systems is critical and typically performed by CPU-based sequential solvers. Specifically, reliance on global sparse linear algebra or the serial nature of dynamic…

机器人学 · 计算机科学 2026-03-13 Yilin Zou , Zhong Zhang , Maxime Robic , Fanghua Jiang

In this article we study the suitability of dierent computational accelerators for the task of real-time data processing. The algorithm used for comparison is the polyphase filter, a standard tool in signal processing and a well established…

分布式、并行与集群计算 · 计算机科学 2014-11-14 Karel Adámek , Jan Novotný , Wes Armour