The terrain analysis software package was restructured and documentation was added. A program was written to test Johnson Space Center's four band scatterometer data for spurious signals data. A catalog of terrain roughness statistics and calibrated four frequency multipolarization scatterometer data is being published to support the maintenance of Death Valley as a radar backscatter calibration test site for all future airborne and spacecraft missions. Test pits were dug through sand covered terrains in the Eastern Sahara to define the depth and character of subsurface interfaces responsible for either backscatter or specular response in SIR-A imagery. Blocky sandstone bedrock surfaces at about 1 m depth were responsible for the brightest SIR-A returns. Irregular very dense CaCO3 cemented sand interfaces were responsible for intermediate grey tones. Ancient river valleys had the weakest response. Reexamination of SEASAT l-band imagery of U.S. deserts continues.
Radar backscatter modelling
1984-04-01
Aufsatz (Konferenz)
Keine Angabe
Englisch
Modelling Helicopter Radar Backscatter
NTIS | 2011
|Rapid radar backscatter simulation of detailed targets
IEEE | 1990
|Radar backscatter from airports and surrounding areas
NTRS | 1988
|Weather effects on radar backscatter from crops
British Library Conference Proceedings | 1997
|Shallow water sonar conditions and radar backscatter
Tema Archiv | 1994
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