Used primarily for high-resolution wide-angle SAR, this algorithm operates almost entirely in the two-dimensional frequency domain. It provides superior focusing for airborne systems with significant motion errors. The Standard Processing Chain
Projects the image onto a map coordinate system. digital processing of synthetic aperture radar data pdf
Raw SAR data is virtually unrecognizable to the human eye. It consists of a "phase history" where the energy from a single ground target is spread across many thousands of pulses. This occurs because: The pulse has a finite duration. Used primarily for high-resolution wide-angle SAR
The wide beamwidth observes the target from many positions along the flight path. digital processing of synthetic aperture radar data pdf
The Range-Doppler Algorithm is the classic approach. It is the most documented method in textbooks and PDF resources because of its intuitive logic.