Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975asns...30..247b&link_type=abstract
(Comite National Francais de Radioelectricite Scientifique, Colloque sur l'Analyse des Signaux Non Stationnaires, Paris, France,
Astronomy and Astrophysics
Astronomy
Jupiter Atmosphere, Radio Astronomy, Signal Stabilization, Solar Radio Emission, Spectral Resolution, Spectrographs, Background Noise, Emission Spectra, Magnetohydrodynamic Stability, Planetary Magnetospheres, Solar Corona, Spectral Signatures, Sweep Frequency
Scientific paper
The solar corona and the Jupiter magnetosphere emit extremely short-duration and spectrally narrow radio waves which should be considered not as noise but as unstable signals. Sweep-frequency spectrographs and multichannel spectrographs developed for very high resolution measurements of this emission in the decametric wave range are described. Dynamic spectra obtained with these instruments are discussed, and the problem of sensitivity is considered. It is shown that sensitivity is limited by sky background noise, and depends on the shape of the measured spectrum.
Boischot Andre
Rosolen Carlo
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