Ultra-wideband and low-frequency SAR interferometry

作者：Lars M. H. Ulander, P.O. Frolund · 年份：2002 · DOI：10.1109/igarss.1996.516437 · 被引用次数：4 · 研究领域：Synthetic Aperture Radar (SAR) Applications and Techniques、Soil Moisture and Remote Sensing、Cryospheric studies and observations

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.