ABSTRACT

This book focuses on SAR imaging from a systems point of view, albeit one of signal aspects, with a complete chain from wave-target interactions to image formation to target feature enhancement. SAR is a complex system that measures the scattered wave of a target under an impinging incident wave that is transmitted by setting the probing frequency, polarization, and observing geometry. Essentially, SAR involves radar operation and image formation. The key to SAR is to obtain the Doppler shifts embedded in the carrier frequency, by moving either the radar or the target being observed. Thus, through proper operation and data processing, SAR can accurately obtain a target’s reflectivity map and velocity (if not stationary).