Key-Feature-Assisted Joint Dynamic Estimation and 3-D Reconstruction for Spaceborne ISAR Imaging of Fixed-Axis Spinning Target (opens in new tab)

Space situational awareness (SSA) faces critical challenges in characterizing the dynamics and structures of fixed-axis spinning space objects using spaceborne inverse synthetic aperture radar (ISAR). The performance of existing methods depends on high-quality 2-D imaging and precise feature extraction, which suffer from 3-D spatial migration and phase errors under complex relative motion. To address the aforementioned challenges, we propose a joint dynamic estimation and 3-D reconstruction f...