The Evolution and Mechanics of Digital Processing in Synthetic Aperture Radar (SAR)

Reading raw or Level-1 SAR data (e.g., from Sentinel-1, RADARSAT, or NASA datasets). Range Compression:

Chirp Scaling Algorithm (CSA): Developed to avoid the computationally heavy interpolation needed in RDA. It uses phase multiplies to perform RCMC more efficiently. Omega-K (

Range Compression: Focuses the data in the direction perpendicular to the flight path. It uses Pulse Compression (typically linear FM chirps) to achieve high resolution without needing immense peak power.