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The reflection of microwaves by a refractive layer perturbed by waves

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1 Author(s)
Gossard, E. ; U.S. Navy Electronics Laboratory, San Diego, CA, USA

The power spectra of amplitude and slope for several cases of internal waves on a radio refractive layer are shown and the implication of these waves for radio and radar coverage is discussed. The angular reflection patterns are derived for rough layers and the beamwidths in elevation and azimuth are obtained. The amplitude, frequency, wavelength and velocity of atmospheric waves are described, and the possibility of such waves acting as very rapidly moving reflectors is discussed. It is concluded on the basis of present observations of wavelength, amplitude, and phase velocity of atmospheric internal waves that they are not likely to be a source of very rapidly moving reflections such as were observed by Waterman at microwave frequencies.

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Antennas and Propagation, IRE Transactions on  (Volume:10 ,  Issue: 3 )