Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991p%26ss...39.1289j&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 39, Sept. 1991, p. 1289-1296. Research supported by NSERC.
Astronomy and Astrophysics
Astronomy
12
Forward Scattering, Meteoroid Showers, Radio Meteors, Radio Scattering, Scatter Propagation, Mathematical Models, Reflected Waves, Wave Propagation
Scientific paper
The results of full-wave calculations, based upon the oblique-scattering theory of radio waves from meteor trains of Jones and Jones (1990) are described. The implications of the results of these calculations for forward-scatter meteor radar systems are discussed. For underdense trains, the present work confirms the findings of the earlier approximate treatment. For overdense trains, the duration of the phase during which the train reflects like a metallic cylinder is governed by the oblique, rather than the forward-scatter angle. When the plasma in an overdense train becomes subcritical the reflection coefficient decays exponentially with time, but at a rate which is considerably less than that given by previous treatments. A number of approximate formulas are given, which may be useful in the design of forward-scatter meteor communications systems, and in the interpretation of astronomical observations obtained in this way.
Jones Jason J.
Jones William
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