Principle of FMCW radar

This document discusses the principles and signal processing techniques of Frequency-Modulated Continuous-Wave (FMCW) radars, focusing on linear FMCW radar for precipitation measurements. It explains the modulation process that enables ranging capabilities, Doppler frequency shifts related to moving targets, and provides an overview of the IDRA drizzle radar system developed at the Delft University of Technology. The document includes specific technical specifications and a block diagram of the radar system, emphasizing its applications in atmospheric remote sensing. 

principle-of-fmcw-radarsfrom tobiasotto

A signal processing view of strip-mapping synthetic aperture radar

Munson, D.C., Jr.; Visentin, R.L., "A signal processing view of strip-mapping synthetic aperture radar," Acoustics, Speech and Signal Processing, IEEE Transactions on , vol.37, no.12, pp.2131,2147, Dec 1989. doi: 10.1109/29.45556

Abstract: The authors derive the fundamental strip-mapping SAR (synthetic aperture radar) imaging equations from first principles. They show that the resolution mechanism relies on the geometry of the imaging situation rather than on the Doppler effect. Both the airborne and spaceborne cases are considered. Range processing is discussed by presenting an analysis of pulse compression and formulating a mathematical model of he radar return signal. This formulation is used to obtain the airborne SAR model. The authors study the resolution mechanism and derive the signal processing relations needed to produce a high-resolution image. They introduce spotlight-mode SAR and briefly indicate how polar-format spotlight processing can be used in strip-mapping SAR. They discuss a number of current and future research directions in SAR imaging

Reference