A review on Synthetic Aperture Radar for Earth Remote Sensing: Challenges and Opportunities

Remote Sensing has received paramount attention in the recent past due to its numerous applications in environmental studies to benefit the living beings. The advancements in imaging techniques have taken place leveraging the sophisticated tools proposed in remote sensing methods. Synthetic Aperture Radar (SAR) has been a key player in improving the spatial resolution of the imaging radiometry. In this paper, a review on the SAR technique highlighting its characteristic features, different types, existing problems and proposed solutions and future opportunities is presented. The main motivation for this work is to present the existing challenges and opportunities for the technicians in the SAR field so that the currently existing SAR datasets can be utilized to improve the SAR technologies.