Short‐range SAR imaging with a fast adaptive plug‐and‐play ADMM‐based approach

This study presents a method for short‐range synthetic aperture radar (SAR) imaging employing a fast adaptive plug‐and‐play framework based on the alternating direction method of multipliers (ADMM). The proposed approach capitalizes on the advanced ADMM‐based image‐solving model to enhance the efficiency of SAR image reconstruction. By integrating adaptive parameter tuning with a plug‐and‐play strategy, the algorithm dynamically adjusts regularization parameters, resulting in enhanced convergence and superior image quality. The methodology exploits the inherent flexibility and speed of the ADMM algorithm, offering a computationally efficient solution tailored for short‐range SAR imaging applications. Experimental results demonstrate the effectiveness of the proposed approach in achieving high‐quality SAR reconstructions while accommodating variations in scene complexity and noise levels. We proposed a synthetic aperture radar (SAR) imaging scheme of fast adaptive–alternating direction method of multipliers–shrinkage threshold and showed the denoising performance of the SAR image as a function of signal‐to‐noise ratio.