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Extragalactic fast radio bursts (FRBs) are a new class of astrophysical transients with unknown origins that have become a main focus of radio observatories worldwide. FRBs are highly energetic ($\sim 10^{36}$-$10^{42}$ ergs) flashes that…

Instrumentation and Methods for Astrophysics · Physics 2023-04-18 Masoud Rafiei-Ravandi , Kendrick M. Smith

A method of radio frequency interference (RFI) suppression in radio astronomy spectral observations is described based on the analysis of the probability distribution of an instantaneous spectrum. This method allows the separation of the…

Instrumentation and Methods for Astrophysics · Physics 2015-03-17 P. A. Fridman

Astronomical surveys of celestial sources produce streams of noisy time series measuring flux versus time ("light curves"). Unlike in many other physical domains, however, large (and source-specific) temporal gaps in data arise naturally…

Instrumentation and Methods for Astrophysics · Physics 2017-11-30 Brett Naul , Joshua S. Bloom , Fernando Pérez , Stéfan van der Walt

Radio frequency fingerprinting (RFF) is a promising device authentication technique for securing the Internet of things. It exploits the intrinsic and unique hardware impairments of the transmitters for RF device identification. In…

Signal Processing · Electrical Eng. & Systems 2023-06-26 Yuan Zeng , Yi Gong , Jiawei Liu , Shangao Lin , Zidong Han , Ruoxiao Cao , Kaibin Huang , Khaled Ben Letaief

In the new era of very large telescopes, where data is crucial to expand scientific knowledge, we have witnessed many deep learning applications for the automatic classification of lightcurves. Recurrent neural networks (RNNs) are one of…

Instrumentation and Methods for Astrophysics · Physics 2021-06-08 C. Donoso-Oliva , G. Cabrera-Vives , P. Protopapas , R. Carrasco-Davis , P. A. Estevez

Channel state information (CSI) rapidly becomes outdated in high mobility scenarios, degrading the performance of wireless communication systems. In these cases, time series prediction techniques can be applied to combat the effects of…

Signal Processing · Electrical Eng. & Systems 2021-03-11 Joseph Kibugi , Lucas N. Ribeiro , Martin Haardt

In this paper, we investigate the use of recurrent neural network (RNN)-based detection of magnetic recording channels with inter-symbol interference (ISI). We refer to the proposed detection method, which is intended for recording channels…

Information Theory · Computer Science 2020-08-03 Simeng Zheng , Yi Liu , Paul H. Siegel

Extensive radio frequency interference (RFI) monitoring is essential in the site selection process before constructing radio astronomy observatories, followed by mitigation strategies to minimize its adverse effects. Malaysia has an…

Clinical medical data, especially in the intensive care unit (ICU), consist of multivariate time series of observations. For each patient visit (or episode), sensor data and lab test results are recorded in the patient's Electronic Health…

Machine Learning · Computer Science 2017-03-23 Zachary C. Lipton , David C. Kale , Charles Elkan , Randall Wetzel

Current and upcoming radio telescopes are being designed with increasing sensitivity to detect new and mysterious radio sources of astrophysical origin. While this increased sensitivity improves the likelihood of discoveries, it also makes…

Instrumentation and Methods for Astrophysics · Physics 2020-01-17 Alessio Sclocco , Dany Vohl , Rob V. van Nieuwpoort

Radio frequency fingerprint identification (RFFI) is a key technique for wireless network security, leveraging intrinsic hardware imperfections to enable transmitter identification. Although deep neural networks are effective at extracting…

Machine Learning · Computer Science 2026-05-27 Yuhao Pan , Xiucheng Wang , Fushuo Huo , Nan Cheng , Wenchao Xu

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…

Solar and Stellar Astrophysics · Physics 2023-02-22 Peijin Zhang , André R. Offringa , Pietro Zucca , Kamen Kozarev , Mattia Mancini

Detection and mitigation of radio frequency interference (RFI) is the first and also the key step for data processing in radio observations, especially for ongoing low frequency radio experiments towards the detection of the cosmic dawn and…

Instrumentation and Methods for Astrophysics · Physics 2016-03-02 Yan Huang , Xiang-Ping Wu , Qian Zheng , Jun-Hua Gu , Haiguang Xu

Recurrent neural networks (RNNs) are instrumental in modelling sequential and time-series data. Yet, when using RNNs to inform decision-making, predictions by themselves are not sufficient; we also need estimates of predictive uncertainty.…

Machine Learning · Computer Science 2020-06-30 Ahmed M. Alaa , Mihaela van der Schaar

Accurately predicting the performance of active radio frequency (RF) circuits is essential for modern wireless systems but remains challenging due to highly nonlinear, layout-sensitive behavior and the high computational cost of traditional…

Machine Learning · Computer Science 2026-03-11 Anahita Asadi , Leonid Popryho , Inna Partin-Vaisband

Radio Frequency Interference (RFI) is threatening modern radio astronomy. A classic approach to mitigate its impact on astronomical data involves discarding the corrupted time and frequency data samples through a process called flagging and…

Signal Processing · Electrical Eng. & Systems 2020-07-28 Gregory Hellbourg , Ian Morrison

Radio-frequency fingerprints~(RFFs) are promising solutions for realizing low-cost physical layer authentication. Machine learning-based methods have been proposed for RFF extraction and discrimination. However, most existing methods are…

Machine Learning · Computer Science 2021-08-11 Renjie Xie , Wei Xu , Yanzhi Chen , Jiabao Yu , Aiqun Hu , Derrick Wing Kwan Ng , A. Lee Swindlehurst

Ensuring reliable and predictable communications is one of the main goals in modern industrial systems that rely on Wi-Fi networks, especially in scenarios where continuity of operation and low latency are required. In these contexts, the…

Networking and Internet Architecture · Computer Science 2025-12-02 Gabriele Formis , Amanda Ericson , Stefan Forsstrom , Kyi Thar , Gianluca Cena , Stefano Scanzio

Context. Apertif is a multi-beam receiver system for the Westerbork Synthesis Radio Telescope that operates at 1.1-1.5 GHz, which overlaps with various radio services, resulting in contamination of astronomical signals with radio-frequency…

Radio frequency fingerprint identification (RFFI) exploits device-specific hardware impairments for transmitter recognition, but its performance is highly vulnerable to receiver variations and changing wireless channels in cross-receiver…

Signal Processing · Electrical Eng. & Systems 2026-03-10 Jiashuo He , Yumeng Wang , Feiyang He , Sai Huang , Yiheng Liu , Shuo Chang , Zhiyong Feng
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