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The Nature of Radio Interference and Some Lines of Defense

Published online by Cambridge University Press:  12 April 2016

J. Richard Fisher
J. Richard Fisher*
Affiliation:
NRAO, Green Bank, WV 24944U.S.A.

Abstract

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As competition for radio spectrum space continues to increase, radio astronomers can expect to put more technical effort into ways of observing in the presence of interference. Much of the spectrum outside of exclusive radio astronomy frequency bands will continue to be available to the science if receivers and antennas are designed to make efficient use of times, frequencies, directions, and coherence envelopes that do not contain sources of interference. The paper outlines the state of the art in antenna sidelobe reduction, high dynamic range spectrometers, and receiver designs for handling large signals. Techniques for excising pulsed interference on very short timescales and a few thoughts on signal canceling techniques are discussed.

Type
Radio Frequency Interference
Information
International Astronomical Union Colloquium , Volume 112: Light Pollution, Radio Interference, and Space Debris , 1991 , pp. 240 - 248
Copyright
Copyright © Astronomical Society of the Pacific 1991

References

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