SAR Image Imaging Simulation Algorithms and Implementation

This article provides an in-depth discussion of SAR image formation simulation algorithms, focusing on three key methodologies: the Range Doppler (RD) algorithm, Chirp Scaling (CS) algorithm, and Range Migration Algorithm (RDM). The implementation incorporates sinc interpolation techniques for precise range cell migration correction (RCMC). Each algorithm's core processing flow involves distinct approaches: RD algorithm employs frequency domain processing with range and azimuth compression, CS algorithm utilizes phase multiplication for simplified range cell migration handling, and RDM algorithm implements Stolt interpolation for complete wave equation solution. These techniques establish fundamental theoretical and practical foundations for SAR imaging simulation research. Through this comprehensive analysis, readers will gain deep understanding of algorithm implementations, including key MATLAB functions for signal processing, phase compensation methods, and interpolation techniques for accurate image reconstruction. The content demonstrates practical applications in SAR simulation scenarios, enabling better comprehension of complete SAR image formation processes and methodology optimization approaches.