ABSTRACT
Synthetic aperture radar (SAR) is a high-resolution two-dimensional imaging system and is useful for monitoring the earth’s surface. In this chapter, we see how a high-resolution radar image is created by a SAR. Once the imaging principle is understood, it serves to interpret SAR images from a technical aspect such as resolutions in the range and in the azimuth direction. In addition, the SAR principles can be further extended to fully polarimetric SAR (PolSAR), interferometric SAR (InSAR), PolInSAR, Tomographic SAR (Tomo-SAR), and Holographic SAR (Holo-SAR).
