.png){kind=icon}
返回
A Structural Sparse ISAR Imaging Method With Joint Phase Autofocusing
.png){kind=icon}
PRE
AI
DOI：10.1109/LGRS.2024.3442835.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Aiming at improving the performance of sparse aperture inverse synthetic aperture radar (ISAR) imaging under the condition of phase error, an efficient structural sparse imaging algorithm with joint phase autofocusing is proposed in this letter. First, an azimuth sparse ISAR imaging model containing phase error is constructed. To fully utilize the structural sparse characteristics of the imaging target, the above imaging model is further transformed into an $\boldsymbol {l}_{1}$ norm optimization problem using structural weighting. Second, leveraging fast iterative shrinkagethresholding algorithm (FISTA), the phase error estimation and the target structure weight updating are integrated into the image reconstruction framework. By solving this compound optimization problem iteratively, the final high-resolution ISAR imaging results are obtained. Finally, the experimental results of the measured data show that the proposed algorithm can achieve well-focused image efficiently under phase error conditions and has a remarkable imaging performance under low signal-to-noise ratio (SNR) and sparse aperture conditions due to the utilization of the sparse structure of the target.
Keyword:
Compressive sensing (CS)
fast iterative shrinkage-thresholding algorithm (FISTA)
inverse synthetic aperture radar (ISAR)
structural sparse characteristics
Compressive sensing (CS)
fast iterative shrinkage-thresholding algorithm (FISTA)
inverse synthetic aperture radar (ISAR)
structural sparse characteristics
期刊
IF:
16.4
论文数:
1.0W
被引数:
5.1K
机构
引用论文
Effect of an autopolymerizing sealant on viability of microflora in occlusal dental caries自聚性封闭剂对咬合面龋损中微生物存活的影响
PREAI
分享收藏Pattern-Coupled Sparse Bayesian Learning for Inverse Synthetic Aperture Radar Imaging模式耦合稀疏贝叶斯学习在逆合成孔径雷达成像中的应用
PREAI
分享收藏
分享收藏
分享收藏Joint random stepped frequency ISAR imaging and autofocusing based on 2D alternating direction method of multipliers.png)
SIGNAL PROCESSING
SIGNAL PROCESSINGIF3.6
PREAI
分享收藏
查看更多内容