Title :
Some problems of realization spaceborne SAR in P, UHF, VHF bands
Author :
Goriachkin, Oleg V. ; Klovsky, Daniel D.
Author_Institution :
Central Specialized Design Bur., Samara, Russia
Abstract :
Assessment of wavelengths in range from 70 cm up to 3 m is one of actual directions in space-based SAR development. However, the low-frequency systems have serious difficulties with producing a spatial resolution about few meters. The resolution of a low-frequency SAR is affected by: a) the SAR hardware channel non-linearity; b) distribution of troposphere and ionosphere refraction factor; c) fluctuations of atmosphere refraction factor. This article discusses these theoretical problems
Keywords :
geophysical techniques; radar imaging; radar theory; remote sensing by radar; spaceborne radar; synthetic aperture radar; terrain mapping; 70 cm to 3 m; P-band; SAR; UHF; VHF; atmospheric refraction factor; fluctuations; geophysical measurement technique; hardware channel nonlinearity; image resolution; ionosphere; land surface; radar imaging; radar remote sensing; spaceborne radar; synthetic aperture radar; terrain mapping; troposphere; Backscatter; Fluctuations; Hardware; Ionosphere; Kernel; Radar imaging; Signal resolution; Spaceborne radar; Synthetic aperture radar; Terrestrial atmosphere;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International
Conference_Location :
Hamburg
Print_ISBN :
0-7803-5207-6
DOI :
10.1109/IGARSS.1999.774601
