Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....97..366a&link_type=abstract
Astronomy and Astrophysics, vol. 97, no. 2, Apr. 1981, p. 366-372.
Astronomy and Astrophysics
Astronomy
10
Cepstral Analysis, Radio Sources (Astronomy), Signal Analysis, Broadband, Earth Ionosphere, Faraday Effect, Radar Detection
Scientific paper
The spectral interference effect resulting from the superposition of various delayed modes of propagation having an arbitrary, previously unknown, shape is discussed. Cepstral analysis of such signals offers new possibilities for studying propagation media and detecting feeble signals via mode separation, both for group delay and Doppler shift. Of particular importance is this method in outer space studies using continuous and pulsed radiation from radio sources. In this connection, the possibilities of using the spectral Faraday effect and bistatic radiolocation of celestial bodies by radio source emission are discussed. Spectral interference effects of the earth's ionosphere are investigated. It is shown that these effects should be taken into account when interpreting spectral observations in the meter and decameter radio frequency range.
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