Obtaining JTF-Signature of Space-Debris From Incomplete and Phase-Corrupted Data

作者：Xueru Bai, Feng Zhou, Hui Ye · 发表于：IEEE Transactions on Aerospace and Electronic Systems · 年份：2017 · DOI：10.1109/taes.2017.2667899 · 被引用次数：35 · 研究领域：Advanced SAR Imaging Techniques、Ultrasonics and Acoustic Wave Propagation、Advanced Optical Sensing Technologies

To facilitate space debris characterization, recognition, and cataloguing in space situation awareness, this paper represents the incomplete and phase-corrupted echoes of micromotion space debris using a nonparametric joint time-frequency (JTF) dictionary and obtains the sparse and phase-corrected JTF signature by iterative optimization. The proposed method avoids matrix inversion to reduce the computational complexity and can be extended to range-instantaneous-Doppler imaging readily. Simulation results have proved the effectiveness of the proposed method.