Title :
Electromagnetic aspects for sub-surface sounding of planets
Author :
Arbesser-Rastburg, B ; Floury, N.
Author_Institution :
ESA-ESTEC, Noordwijk, Netherlands
Abstract :
Some aspects of satellite-based planetary subsurface sensing are outlined. One constraint has to do with the fact that at very low frequencies, needed to penetrate the ground, it is difficult or impossible to achieve a narrow antenna beam-width and therefore a large area is illuminated, creating backscatter which interferes with the wanted signal. Another issue is the propagation through the planet´s atmosphere and particularly through the ionosphere
Keywords :
planetary surfaces; planets; radioastronomical techniques; remote sensing by radar; antenna beam-width; backscatter; planetary atmospheric propagation; planetary ionosphere effects; planetary missions; planets; satellite-based planetary subsurface sensing; signal interference; subsurface EM sounding; Antennas and propagation; Atmosphere; Dielectrics; Electromagnetic scattering; Planets; Radar scattering; Rough surfaces; Spaceborne radar; Surface roughness; Surface topography;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.978076