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The growing level of radio frequency interference (RFI) is a recognized problem for research in radio astronomy. This paper describes an intuitive but powerful RFI cancellation technique that is suitable for radio spectroscopy where…

Astrophysics · Physics 2009-10-31 F. H. Briggs , J. F. Bell , M. J. Kesteven

We apply classical machine vision and machine deep learning methods to prototype signal classifiers for the search for extraterrestrial intelligence. Our novel approach uses two-dimensional spectrograms of measured and simulated radio…

Instrumentation and Methods for Astrophysics · Physics 2019-02-08 G. R. Harp , Jon Richards , Seth Shostak Jill C. Tarter , Graham Mackintosh , Jeffrey D. Scargle , Chris Henze , Bron Nelson , G. A. Cox , S. Egly , S. Vinodababu , J. Voien

This paper explores the use of ambient radio frequency (RF) signals for human presence detection through deep learning. Using WiFi signal as an example, we demonstrate that the channel state information (CSI) obtained at the receiver…

Machine Learning · Computer Science 2020-12-11 Yang Liu , Tiexing Wang , Yuexin Jiang , Biao Chen

In order to efficiently analyse the vast amount of data generated by solar space missions and ground-base instruments, modern machine learning techniques such as decision trees, support vector machines (SVMs) and neural networks can be very…

Solar and Stellar Astrophysics · Physics 2020-05-28 Teri Love , Thomas Neukirch , Clare E. Parnell

Radio Frequency Fingerprinting (RFF) using deep learning has gained attention as a complementary approach to cryptographic authentication, offering resistance to spoofing, replay attacks, and key leakage. While most RFF approaches rely on…

Signal Processing · Electrical Eng. & Systems 2026-05-18 Fawaz Abdul Razak , Yasin Yilmaz

Large volumes of data from material characterizations call for rapid and automatic data analysis to accelerate materials discovery. Herein, we report a convolutional neural network (CNN) that was trained based on theoretic data and very…

Data Analysis, Statistics and Probability · Physics 2019-12-18 Hong Wang , Yunchao Xie , Dawei Li , Heng Deng , Yunxin Zhao , Ming Xin , Jian Lin

Altered fingerprint recognition (AFR) is challenging for biometric verification in applications such as border control, forensics, and fiscal admission. Adversaries can deliberately modify ridge patterns to evade detection, so robust…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Dana A Abdullah , Dana Rasul Hamad , Bishar Rasheed Ibrahim , Sirwan Abdulwahid Aula , Aso Khaleel Ameen , Sabat Salih Hamadamin

Unmanned aerial vehicles (UAVs) enable efficient in-situ radiation characterization of large-aperture antennas directly in their deployment environments. In such measurements, a continuous-wave (CW) probe tone is commonly transmitted to…

The millimeter-wave (mm-wave) radio-over-fiber (RoF) systems have been widely studied as promising solutions to deliver high-speed wireless signals to end users, and neural networks have been studied to solve various linear and nonlinear…

Signal Processing · Electrical Eng. & Systems 2020-01-08 Jeonghun Lee , Jiayuan He , Yitong Wang , Chengwei Fang , Ke Wang

As a new generation radio telescope, the Allen Telescope Array (ATA) is a prototype for the square kilometer array (SKA). Here we describe recently developed design constraints for the ATA digital signal processing chain as a case study for…

Instrumentation and Methods for Astrophysics · Physics 2012-11-29 G. R. Harp

The "search for extraterrestrial intelligence" (SETI) commensal surveys aim to scan the sky to find possible technosignatures from the extraterrestrial intelligence (ETI). The mitigation of radio frequency interference (RFI) is an important…

Instrumentation and Methods for Astrophysics · Physics 2023-08-21 Yu-Chen Wang , Zhen-Zhao Tao , Zhi-Song Zhang , Cheqiu Lyu , Tingting Zhang , Tong-Jie Zhang , Dan Werthimer

Radio frequency interference (RFI) is a significant challenge faced by today's radio astronomers. While most past efforts were devoted to cleaning the RFI from the data, we develop a novel method for categorizing and cataloguing RFI for…

Instrumentation and Methods for Astrophysics · Physics 2023-06-07 Mao Yuan , Weiwei Zhu , Haiyan Zhang , Shijie Huang , Mengyao Xue , Di Li , Youling Yue , Pei Wang , 1 Jiarui Niu , Yuxuan Hu , Chunjiang Li , Chenchen Miao , Yu Wang , Lingqi Meng , Bo Peng

Radio frequency fingerprint identification (RFFI) is an emerging method for authenticating Internet of Things (IoT) devices. RFFI exploits the intrinsic and unique hardware imperfections for classifying IoT devices. Deep learning-based RFFI…

Cryptography and Security · Computer Science 2025-12-16 Jie Ma , Junqing Zhang , Guanxiong Shen , Linning Peng , Alan Marshall

Radio frequency fingerprint identification (RFFI) is a promising device authentication approach by exploiting the unique hardware impairments as device identifiers. Because the hardware features are extracted from the received waveform,…

Signal Processing · Electrical Eng. & Systems 2024-12-12 Lingnan Xie , Linning Peng , Junqing Zhang

Next-generation radio surveys will yield an unprecedented amount of data, warranting analysis by use of machine learning techniques. Convolutional neural networks are the deep learning technique that has proven to be the most successful in…

Instrumentation and Methods for Astrophysics · Physics 2019-05-29 V. Lukic , M. Brüggen , B. Mingo , J. H. Croston , G. Kasieczka , P. N. Best

Millimeter-wave (mmWave) radar has emerged as a compact and powerful sensing modality for advanced perception tasks that leverage machine learning. It is particularly effective in scenarios where vision-based sensors fail to capture…

Signal Processing · Electrical Eng. & Systems 2026-02-17 Stefan Hägele , Adam Misik , Eckehard Steinbach

Radio Frequency Identification (RFID) tracking may be a viable solution for defense assets that must be stored in accordance with security guidelines. However, poor sensor specificity (vulnerabilities include long range detection, spoofing,…

Machine Learning · Computer Science 2025-10-24 Curtis Lee Shull , Merrick Green

Encouraged by the success of deep learning in a variety of domains, we investigate the suitability and effectiveness of Recurrent Neural Networks (RNNs) in a domain where deep learning has not yet been used; namely detecting confusion from…

Computer Vision and Pattern Recognition · Computer Science 2019-06-27 Shane D. Sims , Vanessa Putnam , Cristina Conati

With their wide fields of view and often relatively long coverage of any position in the sky in imaging survey mode, modern radio telescopes provide a data stream that is naturally suited to searching for rare transients. However, Radio…

In recent years, deep learning has been successfully applied in various scientific domains. Following these promising results and performances, it has recently also started being evaluated in the domain of radio astronomy. In particular,…

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