Synthetic aperture radar interferometry - Invited paper

Synthetic aperture radar interferometry is an imaging technique for measuri ng the topography of a surface, its changes over time, and other changes in the detailed characteristics of the surface. By exploiting the phase of th e coherent radar signal, interferometry has transformed radar remote sensin g from a largely interpretive science to a quantitative tool, with applicat ions in cartography, geodesy, land cover characterization, and natural haza rds. This paper reviews the techniques of interferometry, systems and limit ations, and applications in a rapidly growing area of science and engineeri ng.