Evolutionary Developments in 3D ISAR Imaging: From Early Techniques to Modern Solution
https://doi.org/10.46610/JOVDSP.2024.v10i03.004
Keywords:
Imaging techniques, Polarimetric and interferometric techniques, Target detection and tracking, Target reconstruction, 3D Inverse Synthetic Aperture Radar (ISAR)Abstract
This review paper delves into the advancements in 3D ISAR imaging technology, focusing on the progression from traditional two-dimensional (2D) ISAR techniques to contemporary 3D approaches. ISAR imaging is pivotal in military and civilian radar applications, providing high-resolution images for moving targets. At the same time, 2D ISAR imaging techniques have been instrumental in target detection and tracking, but they are limited in reconstructing complex geometrical details of targets. 3D ISAR overcomes this limitation by incorporating multiple views or sensors to provide a three-dimensional reconstruction of the target, enhancing target recognition accuracy. This paper reviews key developments in 3D ISAR, exploring its principles, methodologies, and recent innovations, including polarimetric and interferometric techniques, alongside photonic solutions for enhanced performance. In addition, it presents a comparative analysis of various 3D ISAR imaging methods, highlighting their respective strengths, challenges, and applications in diverse sectors such as defence, air traffic control, and environmental monitoring.
