Title :
Ultra-wideband and low-frequency SAR interferometry
Author :
Ulander, L.M.H. ; Frolund, P.O.
Author_Institution :
Nat. Defence Res. Establ., Linkoping, Sweden
Abstract :
The authors analyse different techniques for 3D SAR mapping. Interferometry using narrow-band SAR enables retrieval of topography but gives an ambiguous height. Stereoscopy can also be used but has degraded resolution due to speckle. For ultra-wide band SAR, i.e. wavelength-order resolution, these techniques converge and give similar vertical resolution. A significant advantage, however, is that the interferometric height becomes unambiguous since the depth of focus is only one fringe
Keywords :
geophysical techniques; radar imaging; remote sensing by radar; synthetic aperture radar; topography (Earth); 3D SAR mapping; ambiguous height; geophysical measurement technique; interferometric SAR; low-frequency SAR interferometry; radar imaging; radar remote sensing; stereoscopy; synthetic aperture radar; terrain mapping; three dimensional imaging; topography; ultra-wideband SAR; vertical resolution; Argon; Error correction; Interferometry; Narrowband; Phase noise; Radar tracking; Spatial resolution; Speckle; Surfaces; Ultra wideband technology;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International
Conference_Location :
Lincoln, NE
Print_ISBN :
0-7803-3068-4
DOI :
10.1109/IGARSS.1996.516437
