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Fluctuations in phase angle and frequency under large disturbances can lead to loss of synchronism (LOS) in grid-following (GFL) converters. The power angle and frequency of synchronous generators (SGs) correspond to rotor position and…

Systems and Control · Electrical Eng. & Systems 2025-09-03 Fangyuan Sun , Ruisheng Diao , Ruiyuan Zeng , Junjie Li , Wangqianyun Tang

This paper introduces a couple of new time-frequency transforms, designed to adapt their scale to specific features of the analyzed function. Such an adaptation is implemented via so-called focus functions, which control the window scale as…

Classical Analysis and ODEs · Mathematics 2024-06-19 Pierre Warion , Bruno Torrésani

Considering a short frame length, which is typical in Ultra-Reliable Low-Latency and massive Machine Type Communications, a trade-off exists between improving the performance of frame synchronization (FS) and improving the performance of…

Information Theory · Computer Science 2019-03-12 Alex The Phuong Nguyen , Raphaël Le Bidan , Frédéric Guilloud

Modern language models demonstrate impressive coding capabilities in common programming languages (PLs), such as C++ and Python, but their performance in lower-resource PLs is often limited by training data availability. In principle,…

Computation and Language · Computer Science 2026-04-24 Zhaofeng Wu , Shiqi Wang , Boya Peng , Anuj Goyal , Melanie Kambadur , Sebastian Ruder , Yoon Kim , Chloe Bi

We study the real-time dynamics retrieval from a time series via the time-frequency (TF) analysis with the minimal latency guarantee. While different from the well-known intrinsic latency definition in the filter design, a rigorous…

Multimedia · Computer Science 2016-06-30 Li Su , Hau-tieng Wu

Next generation radio telescopes, such as the Square Kilometre Array (SKA) and Next Generation Very Large Array (ngVLA), require precise microwave frequency reference signals to be transmitted over fiber links to each dish to coherently…

Instrumentation and Methods for Astrophysics · Physics 2020-09-09 Skevos F. E. Karpathakis , Charles T. Gravestock , David R. Gozzard , Thea R. Pulbrook , Sascha W. Schediwy

In many engineering applications the level of nonlinear distortions in frequency response function (FRF) measurements is quantified using specially designed periodic excitation signals called random phase multisines and periodic noise. The…

Systems and Control · Electrical Eng. & Systems 2020-04-16 Rik Pintelon , Maarten Schoukens , John Lataire

A key distinguishing feature of single flux quantum (SFQ) circuits is that each logic gate is clocked. This feature forces the introduction of path-balancing flip-flops to ensure proper synchronization of inputs at each gate. This paper…

Emerging Technologies · Computer Science 2024-01-15 Robert S. Aviles , Xi Li , Lei Lu , Zhaorui Ni , Peter A. Beerel

Emerging wireless control applications demand for extremely high closed-loop reliability under strict latency constraints, which the conventional Automatic Repeat reQuest (ARQ) solutions with static schedules fail to provide. To overcome…

Information Theory · Computer Science 2021-11-30 Bin Han , Yao Zhu , Muxia Sun , Vincenzo Sciancalepore , Yulin Hu , Hans D. Schotten

In this paper, a communication-efficient federated learning (FL) framework is proposed for improving the convergence rate of FL under a limited uplink capacity. The central idea of the proposed framework is to transmit the values and…

Signal Processing · Electrical Eng. & Systems 2023-07-21 Jaewon Yun , Yongjeong Oh , Yo-Seb Jeon , H. Vincent Poor

Large Language Models (LLMs) are powerful but often too slow and costly for real-world use during inference. Looped transformers save on parameters by reusing the same weights for multiple computational steps, or "loops." However, this…

Computation and Language · Computer Science 2025-10-30 Bohong Wu , Mengzhao Chen , Xiang Luo , Shen Yan , Qifan Yu , Fan Xia , Tianqi Zhang , Hongrui Zhan , Zheng Zhong , Xun Zhou , Siyuan Qiao , Xingyan Bin

Rapid single-flux quantum (RSFQ) is one of the most advanced superconductive electronics technologies. SFQ systems operate at tens of gigahertz with up to three orders of magnitude smaller power as compared to CMOS. In conventional SFQ…

Emerging Technologies · Computer Science 2024-03-12 Rassul Bairamkulov , Giovanni De Micheli

Recently, recycled field-programmable gate arrays (FPGAs) pose a significant hardware security problem due to the proliferation of the semiconductor supply chain. Ring oscillator (RO) based frequency analyzing technique is one of the…

Hardware Architecture · Computer Science 2023-03-06 Tanvir Ahmad Tarique , Foisal Ahmed , Maksim Jenihhin , Liakot Ali

Supervised Fine-Tuning (SFT) accelerates taskspecific large language models (LLMs) development, but the resulting proliferation of finetuned models incurs substantial memory overhead. Delta compression addresses this by retaining a single…

Machine Learning · Computer Science 2026-04-21 Junlin Li , Shuangyong Song , Guodong Du , Ngai Wong , Xuebo Liu , Yongxiang Li , Min Zhang , Jing Li , Xuelong Li

Vision-language-action (VLA) models have recently emerged as a powerful paradigm for building generalist robots. However, traditional VLA models that generate actions through flow matching (FM) typically rely on rigid and uniform time…

Robotics · Computer Science 2026-05-08 Yuhua Jiang , Shuang Cheng , Yan Ding , Feifei Gao , Biqing Qi

In urban environments, standalone GNSS receivers can be strongly affected to the point of not being able to provide a position accuracy suitable for use in vehicular applications. In this paper, a vector delay/frequency-locked loop (VDFLL)…

Signal Processing · Electrical Eng. & Systems 2019-05-28 Enik Shytermeja , Axel Garcia-Pena , Olivier Julien

Targeting the notorious cumulative drift errors in NeRF SLAM, we propose a Semantic-guided Loop Closure using Shared Latent Code, dubbed SLC$^2$-SLAM. We argue that latent codes stored in many NeRF SLAM systems are not fully exploited, as…

Robotics · Computer Science 2025-03-19 Yuhang Ming , Di Ma , Weichen Dai , Han Yang , Rui Fan , Guofeng Zhang , Wanzeng Kong

We report on the possibility to obtain a high-quality inverted Doppler-free resonance in D1 line of alkali-metal atoms in the single-frequency regime. The counter-propagating optical fields with linear and mutually orthogonal polarizations…

Digital single-flux quantum (SFQ) technology promises to meet the demands of ultra low power and high speed computing needed for future exascale supercomputing platforms. However, clocking SFQ logic circuits remains a challenge due to the…

Superconductivity · Physics 2021-08-10 Gourav Datta , Shidie Lin , Peter A. Beerel

A variant of the complex Ginzburg-Landau equation is used to investigate the frequency locking phenomena in spatially extended systems. With appropriate parameter values, a variety of frequency-locked patterns including flats, $\pi$ fronts,…

Pattern Formation and Solitons · Physics 2009-11-07 Hwa-Kyun Park