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Related papers: A Search for Extraterrestrial Technosignatures in …

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This paper presents an overview of methods for mitigating radio frequency interference (RFI) in radio science data. The primary purpose of mitigation is to assist observatories to take useful data outside frequency bands allocated to the…

Instrumentation and Methods for Astrophysics · Physics 2023-03-01 Willem A. Baan

Searches for radio technosignatures place constraints on the prevalence of extraterrestrial transmitters in our Galaxy and beyond. It is important to account for the complete stellar population captured within a radio telescope's field of…

Instrumentation and Methods for Astrophysics · Physics 2025-11-26 Louisa A. Mason , Michael A. Garrett , Andrew P. V. Siemion

With the ongoing growth in radio communications, there is an increased contamination of radio astronomical source data, which hinders the study of celestial radio sources. In many cases, fast mitigation of strong radio frequency…

Signal Processing · Electrical Eng. & Systems 2024-03-08 Zaid Bin Tariq , Teviet Creighton , Louis P. Dartez , Naofal Al-Dhahir , Murat Torlak

A spectral line image cube generated from 115 minutes of MWA data that covers a field of view of 400 sq. deg. around the Galactic Centre is used to perform the first Search for ExtraTerrestrial Intelligence (SETI) with the Murchison…

Earth and Planetary Astrophysics · Physics 2016-08-17 S. J. Tingay , C. Tremblay , A. Walsh , R. Urquhart

One of the challenges in spaceborne synthetic aperture radar (SAR) is modeling and mitigating radio frequency interference (RFI) artifacts in SAR imagery. Linear frequency modulated (LFM) signals have been commonly used for characterizing…

Image and Video Processing · Electrical Eng. & Systems 2025-09-24 Dehui Yang , Feng Xi , Qihao Cao , Huizhang Yang

Contamination by Radio Frequency Interference (RFI) is a ubiquitous challenge for radio astronomy. In particular, transient RFI is difficult to detect and avoid, especially in large data sets with many time bins. In this work, we present a…

Instrumentation and Methods for Astrophysics · Physics 2023-10-04 Dominic Anstey , Samuel A. K. Leeney

Traditionally, fast radio transient searches are conducted on dedispersed time series using thresholding techniques based on the statistical properties of the data. However, peaks in dedispersed time series do not directly provide…

Instrumentation and Methods for Astrophysics · Physics 2025-11-25 Sergio Belmonte Diaz , Rene P. Breton , Zafiirah Hosenie , Ben W. Stappers

The sensitivity of radio astronomical stations is often limited by man-made radio frequency interference (RFI) due to a variety of terrestrial activities. An RFI mitigation subsystem (RFIMS) based on real-time digital signalprocessing is…

Instrumentation and Methods for Astrophysics · Physics 2015-05-20 P. A. Fridman , W. A. Baan , R. P. Millenaar

Radio Frequency Interference (RFI) from anthropogenic radio sources poses significant challenges to current and future radio telescopes. Contemporary approaches to detecting RFI treat the task as a semantic segmentation problem on radio…

Neural and Evolutionary Computing · Computer Science 2026-01-23 Nicholas J Pritchard , Andreas Wicenec , Mohammed Bennamoun , Richard Dodson

Radio-frequency interference (RFI) is becoming an increasingly significant problem for most radio telescopes. Working with Green Bank Telescope data from PSR J1730+0747 in the form of complex-valued channelized voltages and their respective…

Instrumentation and Methods for Astrophysics · Physics 2024-08-14 Zhicheng Cao , Natalia A. Schmid , Kevin Bandura , Duncan R. Lorimer , Morgan Dameron , Katelyn Crockett , Clayton Grubick , Andreas Schmid , Shaonan Zheng

The vast collecting area of the Square Kilometre Array (SKA), harnessed by sensitive receivers, flexible digital electronics and increased computational capacity, could permit the most sensitive and exhaustive search for…

We introduce a new pipeline for analyzing and mitigating radio frequency interference (RFI), which we call Sky-Subtracted Incoherent Noise Spectra (SSINS). SSINS is designed to identify and remove faint RFI below the single baseline thermal…

Instrumentation and Methods for Astrophysics · Physics 2019-10-10 Michael J. Wilensky , Miguel F. Morales , Bryna J. Hazelton , Nichole Barry , Ruby Byrne , Sumit Roy

One of the most interesting questions that astronomy can hope to answer is: are we alone in our Milky Way galaxy? A detection of an electromagnetic (EM) signal generated by an extraterrestrial technological intelligence, or the presence in…

Instrumentation and Methods for Astrophysics · Physics 2026-05-01 B. Zuckerman

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…

Instrumentation and Methods for Astrophysics · Physics 2021-12-07 V. Morello , K. M. Rajwade , B. W. Stappers

Radio Frequency Interference (RFI) is one of the systematic challenges preventing 21cm interferometric instruments from detecting the Epoch of Reionization. To mitigate the effects of RFI on data analysis pipelines, numerous inpaint…

Starting in winter 2008/2009 an L-band 7-Feed-Array receiver is used for a 21-cm line survey performed with the 100-m telescope, the Effelsberg-Bonn HI survey (EBHIS). The EBHIS will cover the whole northern hemisphere for decl.>-5 deg…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 B. Winkel , P. M. W. Kalberla , J. Kerp , L. Floeer

FORUM (Far-infrared Outgoing Radiation Understanding and Monitoring) was selected in 2019 as the ninth Earth Explorer mission by the European Space Agency (ESA). Its primary objective is to collect interferometric measurements in the…

Atmospheric and Oceanic Physics · Physics 2024-10-31 Cristina Sgattoni , Luca Sgheri , Matthias Chung

The High Time Resolution Universe (HTRU) survey is an all-sky survey looking for pulsars and other radio transients. A new single-pulse (SP) search pipeline is presented, tailored to the northern part of the HTRU survey collected with the…

Instrumentation and Methods for Astrophysics · Physics 2026-03-04 L. J. M. Houben , H. Falcke , L. G. Spitler , E. D. Barr , M. Berezina , D. J. Champion , R. Karuppusamy , M. Kramer

Over a period of several decades a concerted effort has been made to determine whether intelligent life exists outside of our solar system, known as the Search for Extraterrestrial Intelligence or SETI. This has been based primarily upon…

General Physics · Physics 2007-05-23 Fred H. Thaheld

The search for radio technosignatures is an anomaly detection problem: Candidate signals represent needles of interest in the proverbial haystack of radio-frequency interference (RFI). Current search frameworks find an enormity of…