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The ground-to-air terrain return at vertical or near-vertical incidence angles may be decomposed into two components: a mirror-like specular component and the scatter component produced by reradiation from the individual scatterers in the terrain (large isolated scatterers and area scatter).
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The image record of the radar terrain return depends on the frequency, angle of incidence, and polarization of the signal. This dependence varies with the nature of the terrain surface; for example, if the terrain is covered by vegetation, a 35GHz
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One may distinguish two components of terrain return: the wanted signal (e.g., when generating a
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signal will penetrate vegetation and record a combination of vegetation and soil surface.
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TRIAD - PRELIMINARY DESIGN OF AN OPERATIONAL EARTH RESOURCES SURVEY SYSTEM
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is the signal returned from the ground surface when sensed by various
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97:"Radar Terrain Return at Near-Vertical Incidence"
58:signal will record vegetation, while a 0.4GHz
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40:terrain avoidance and collision detection
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16:Signal returned from the ground surface
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145:. You can help Knowledge (XXG) by
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38:of the terrain or when used for
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95:R. K. Moore, C. S. Williams,
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109:10.1109/JRPROC.1957.278394
103:, Vol. 45, Issue 2, 1957,
137:This article related to
77:Digital elevation model
72:Terrain-following radar
101:Proceedings of the IRE
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66:See also
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