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Radio astronomy is facing critical challenges due to an ever-increasing human-made signal density filling up the radio spectrum. With the rise of satellites, mobile networks, and other wireless technologies, radio telescopes are struggling…

Instrumentation and Methods for Astrophysics · Physics 2025-12-24 Kaushal D. Buch , Thushara Gunaratne , Gregory Hellbourg , Cedric Viou , Benjamin Winkel

We investigate characteristics of radio frequency interference (RFI) signals that can affect the excision potential of some interference mitigation algorithms. The techniques considered are those that modify signals from auxiliary reference…

Instrumentation and Methods for Astrophysics · Physics 2010-04-01 D. A. Mitchell , J. G. Robertson

Radio-astronomical observations are increasingly corrupted by RF interference, and online detection and filtering algorithms are becoming essential. To facilitate the introduction of such techniques into radio astronomy, we formulate the…

Astrophysics · Physics 2009-10-31 Amir Leshem , Alle-Jan van der Veen , Albert-Jan Boonstra

Radio astronomy observational facilities are under constant upgradation and development to achieve better capabilities including increasing the time and frequency resolutions of the recorded data, and increasing the receiving and recording…

Instrumentation and Methods for Astrophysics · Physics 2017-11-07 Tao An , Xiao Chen , P. Mohan , Bao-Qiang Lao

The rapid expansion of satellite constellations is transforming the radio-frequency environment around the Earth. At the same time, radio astronomy is entering a new era of sensitivity and survey capability, requiring unprecedented control…

Instrumentation and Methods for Astrophysics · Physics 2025-12-02 Gregory Hellbourg

The radio spectrum is a finite and increasingly precious resource for astronomical research, as well as for other spectrum users. Keeping the frequency bands used for radio astronomy as free as possible of unwanted Radio Frequency…

Instrumentation and Methods for Astrophysics · Physics 2009-06-15 W. van Driel

Radio astronomy observatories, such as the Dominion Radio Astrophysical Observatory in Penticton, British Columbia, try to limit radio frequency interference to observe incredibly faint astronomical signals. These protective measures…

Instrumentation and Methods for Astrophysics · Physics 2026-02-27 Pamela Freeman , Jo-Anne C. Brown

We describe the nature of the interference challenges facing radio astronomy in the next decade. These challenges will not be solved by regulation only, negotiation and mitigation will become vital. There is no silver bullet for mitigating…

Astrophysics · Physics 2007-05-23 R D Ekers , J F Bell

The growing need for electromagnetic spectrum to support the next generation (xG) communication networks increasingly generate unwanted radio frequency interference (RFI) in protected bands for radio astronomy. RFI is commonly mitigated at…

Signal Processing · Electrical Eng. & Systems 2022-11-01 Shuvam Chakraborty , Gregory Hellbourg , Maqsood Careem , Dola Saha , Aveek Dutta

Co-Channel Interference (CCI) is a fundamental problem in wireless communication networks. It is a well-studied problem in the field. As channels use the same frequency, interference in the radio waves occurs which, in turn, reduces the…

Signal Processing · Electrical Eng. & Systems 2025-01-29 Tzalik Maimon , Shirley Alus , Gil Kedar

The ever-developing Internet of Things (IoT) brings the prosperity of wireless sensing and control applications. In many scenarios, different wireless technologies coexist in the shared frequency medium as well as the physical space. Such…

Networking and Internet Architecture · Computer Science 2022-04-04 Yuan He , Xiuzhen Guo , Xiaolong Zheng , Zihao Yu , Jia Zhang , Haotian Jiang , Xin Na , Jiacheng Zhang

Modern radio astronomical facilities are able to detect extremely weak electromagnetic signals not only from the universe but also from man-made radio frequency interference of various origins. These range from wanted signals to unwanted…

Instrumentation and Methods for Astrophysics · Physics 2018-12-13 Benjamin Winkel , Axel Jessner

Combined with space-time coding, the orthogonal frequency division multiplexing (OFDM) system explores space diversity. It is a potential scheme to offer spectral efficiency and robust high data rate transmissions over frequency-selective…

Computation and Language · Computer Science 2010-02-18 Raungrong Suleesathira

We present a project to implement a national common strategy for the mitigation of the steadily deteriorating Radio Frequency Interference (RFI) situation at the Italian radio telescopes. The project involves the Medicina, Noto, and…

Radio frequency interference (RFI) already limits the sensitivity of existing radio telescopes in several frequency bands and may prove to be an even greater obstacle for future generation instruments to overcome. I aim to create a…

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

Contamination of signals by pickup and interference is a recurrent problem in physics experiments, the suppression of which consumes much time and effort. Techniques are presented which allow the time-domain assessment of mitigation…

Instrumentation and Detectors · Physics 2019-09-27 John McMillan

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

A large number of heterogeneous wireless networks share the unlicensed spectrum designated as the ISM (Industry, Scientific, and Medicine) radio band. These networks do not adhere to a common medium access rule and differ in their…

Networking and Internet Architecture · Computer Science 2025-01-14 Zegeye Mekasha Kidane , Waltenegus Dargie

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

Interference between nodes directly limits the capacity of mobile ad hoc networks. This paper focuses on spatial interference cancelation with perfect channel state information (CSI), and analyzes the corresponding network capacity.…

Information Theory · Computer Science 2016-11-17 Kaibin Huang , Jeffrey G. Andrews , Robert W. Heath, , Dongning Guo , Randall A. Berry
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