Detection of non-stationary GW signals in high noise from Cohen's class of time–frequency representations using deep learning

N Lopac, F Hržić, IP Vuksanović, J Lerga - IEEE access, 2021 - ieeexplore.ieee.org
Analysis of non-stationary signals in a noisy environment is a challenging research topic in
many fields often requiring simultaneous signal decomposition in the time and frequency …

Structured low-rank and sparse method for ISAR imaging with 2-D compressive sampling

G Xu, B Zhang, J Chen, W Hong - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
With the development of modern advanced radar, there are high demands to perform
inverse synthetic aperture radar (ISAR) imaging from sparse frequency band (SFB) and …

[HTML][HTML] 稳健高效通用SAR 图像稀疏特征增强算法

杨磊, 李埔丞, 李慧娟, 方澄 - 电子与信息学报, 2019 - jeit.ac.cn
针对合成孔径雷达(SAR) 成像中的稀疏特征增强问题, 传统方法难以在精度与效率之间实现有效
的平衡. 该文提出基于复数交替方向多乘子方法(C-ADMM), 针对SAR 稀疏特征增强建立增广的 …

[HTML][HTML] 基于分层贝叶斯Lasso 的稀疏ISAR 成像算法

杨磊, 夏亚波, 毛欣瑶, 廖仙华, 方澄, 高洁 - 电子与信息学报, 2021 - jeit.ac.cn
逆合成孔径雷达(ISAR) 目标回波具有明显的稀疏特征, 传统的凸优化稀疏ISAR
成像算法涉及繁琐的正则项系数调整, 严重限制了超分辨成像的精度及便捷程度. 针对此问题 …

Compressive synthetic aperture radar imaging and autofocusing by augmented Lagrangian methods

A Güngör, M Çetin, HE Güven - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
We consider the problem of synthetic aperture radar (SAR) image reconstruction from
undersampled data in the presence of phase errors. We formulate the problem as one of …

Sparsity-based time-frequency representation of FM signals with burst missing samples

VS Amin, YD Zhang, B Himed - Signal Processing, 2019 - Elsevier
In this paper, we present an effective time-frequency (TF) analysis of non-stationary
frequency modulated (FM) signals in the presence of burst missing data samples. The key …

Ground maneuvering target detection based on discrete polynomial-phase transform and Lv's distribution

W Yu, W Su, H Gu - Signal Processing, 2018 - Elsevier
In a synthetic aperture radar (SAR) system, prolonging the integration time can improve the
detection performance of the ground moving target. However, the complex motions of the …

Superresolution composite SAR imaging method by hierarchical pattern with attributed scattering priors

Y Yang, S Gui, Q Wan - IEEE Transactions on Instrumentation …, 2022 - ieeexplore.ieee.org
Compared with the ideal point scattering model, the attributed scattering center (ASC) model
provides concise and physically relevant description of the man-made targets, such as the …

PnP-Based ground moving target imaging network for squint SAR and sparse sampling

H Zhang, J Ni, C Zhang, Y Luo… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
As a result of residual phase error caused by motion parameters, ground moving targets
(GMTs) are defocused and displaced in conventional synthetic aperture radar (SAR) …

A SAR Imaging Method for Walking Human Based on mωka-FrFT-mmGLRT

S Gui, J Li, Y Yang, F Zuo, Y Pi - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Synthetic aperture radar (SAR) human-imaging technology has been widely used in the
fields of security screening and activity recognition. However, most of the existing methods …