Interference mitigation; nonnegative matrix factorization; ADS-B suppression; radio astronomy
Abstract :
[en] This work assesses the feasibility of using nonnegative matrix factorization (NMF) for radio frequency interference (RFI) mitigation in radio astronomy applications. Two NMF-based mitigation approaches are proposed, one using RFI frequency information extracted from the received signals and the other using an RFI template. The suitability and efficacy of these approaches are evaluated by targeting automatic dependent surveillance-broadcast (ADS-B) RFI using data collected from the Parkes radio telescope in Australia. Results show that the proposed approaches can mitigate the RFI with minimal degradation to the underlying observation of a double pulsar, and without discarding any received data, indicating the applicability of NMF-based approaches as potential RFI mitigation tools in radio astronomy applications.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Silva, Felipe Barboza
Cetin, Ediz
Alves Martins, Wallace ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Tuthill, John
External co-authors :
yes
Language :
English
Title :
Interference Mitigation via NMF for Radio Astronomy Applications: A Feasibility Study
Publication date :
2022
Event name :
15th International Conference on Sensing Technology
Event place :
Sydney, Australia
Event date :
From 05-12-2022 to 07-12-2022
Audience :
International
Main work title :
15th International Conference on Sensing Technology (ICST), Sydney 5-7 December 2022