Communications: directive radio wave systems and devices (e.g. – Synthetic aperture radar
Reexamination Certificate
2006-08-31
2008-11-25
Sotomayor, John B (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Synthetic aperture radar
C342S179000, C342S180000, C342S181000, C342S185000, C342S191000, C345S419000
Reexamination Certificate
active
07456779
ABSTRACT:
A 3D rendered image of a radar-scanned terrain surface is provided from a radar return signal from the surface, wherein the return signal includes data indicative of azimuth, elevation, and range of a radar-illuminated area of the surface. The data are processed for transformation into X, Y, and Z coordinates. The X and Y coordinates corresponding to each illuminated area are triangulated so as to create a mesh of triangles representing the terrain surface, each of the triangles in the mesh being defined by a vertex triplet. 3D imaging information (grey scale shading and/or coloring information) is added to each triangle in the mesh, based on the amplitude of the radar return signal from the coordinates represented by each vertex in the triplet and the value of the Z coordinate at each vertex, so as to form the 3D rendered image.
REFERENCES:
patent: 6778171 (2004-08-01), Kikinis
patent: 6867774 (2005-03-01), Halmshaw et al.
patent: 2006/0164417 (2006-07-01), Donovan et al.
patent: 2008/0074312 (2008-03-01), Cross et al.
Bosworth Theodore
Chapman Craig
Cross Jack
Howard David
Klein O'Neill & Singh, LLP
Sierra Nevada Corporation
Sotomayor John B
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