Answers are grounded in this paper and cite their sources.
The authors propose a ground-based interferometric synthetic aperture radar (SAR) technique for terrain mapping. It is based on a coherent continuous-wave step-frequency (CW-SF) radar moved along a linear horizontal rail. It works synthesising microwave holographic images taken from different points of view to obtain elevation maps by phase comparison. The focusing algorithm for imaging synthetic holograms and digital elevation models (DEM) is able to correct topographic distortion and phase wrap through an iterative multi-baseline procedure.
No takes yet. Share an insight, caveat, or question.
Pieraccini et al. (2001) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: