Mathematics – Logic
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pggp.rept..445w&link_type=abstract
In NASA, Washington Repts. of Planetary Geol. and Geophys. Program, 1984 p 445-447 (SEE N85-23474 13-91)
Mathematics
Logic
Algorithms, Radar Maps, Radar Measurement, Venus Radar Echoes, Mapping, Run Time (Computers), Topography, Vax Computers, Venus (Planet)
Scientific paper
Efforts have continued to improve radarclinometry in spite of the fact that the theory and algorithms still predate the development of the radiometrically calibrated radar upon which they must depend in order to achieve metric precision. Such efforts help to insure the availability of the technique for data returned by the Venus Radar Mapper. Even now, compensation for layover and production of synthesized stereo enhance geologic interpretability of radar images. The theory of radarclinometry utilizes a knowledge of the relation between pixel DN value and terrain surface orientation to produce a topographic map. The process may be conceived in terms of a surface integral which develops away from a topographic profile as available ground truth. Alternatively, in consideration of the unavailability of ground truth in extraterrestrial applications, radarclinometry may develop as a line integral developing from a single point, providing reasonable assumptions about the mathematical nature of local curvature.
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