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Overview of technical approaches to radio frequency interference mitigation

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journal contribution
posted on 2024-07-13, 04:10 authored by F. H. Briggs, J. Kocz
This overview provides an interface between lines of thought on radio frequency interference (RFI) mitigation in the fields of radio astronomy and signal processing. The goal is to explore the commonality of different approaches to help researchers in both fields interpret each other's concepts and jargon. The paper elaborates on the astronomers' concept of gain closure relations and how they may be used in a 'self-calibrating' system of RFI cancellation. Further discussion of the eigen-decomposition method in terms of RFI power and antenna gains introduces adaptive nulling and RFI cancellation through matrix partitioning. While multipath scattering appears at first glance to be fatal to methods of RFI cancellation, its effect is easily incorporated in frequency-dependent gain coefficients under many circumstances.

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ISSN

0048-6604

Journal title

Radio Science

Volume

40

Issue

5

Pagination

10 pp

Publisher

American Geophysical Union

Copyright statement

Copyright © 2005 American Geophysical Union. The published version is reproduced in accordance with the copyright policy of the publisher.

Language

eng

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