Sparse synthetic aperture radar imaging from compressed sensing and machine learning: Theories, applications, and trends

G Xu, B Zhang, H Yu, J Chen, M **ng… - IEEE Geoscience and …, 2022 - ieeexplore.ieee.org
Synthetic aperture radar (SAR) image formation can be treated as a class of ill-posed linear
inverse problems, and the resolution is limited by the data bandwidth for traditional imaging …

Sparsity-driven micro-Doppler feature extraction for dynamic hand gesture recognition

G Li, R Zhang, M Ritchie… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
In this paper, a sparsity-driven method of micro-Doppler analysis is proposed for dynamic
hand gesture recognition with radar sensors. First, sparse representations of the echoes …

A sparsity-perspective to quadratic time–frequency distributions

MG Amin, B Jokanovic, YD Zhang, F Ahmad - Digital Signal Processing, 2015 - Elsevier
We examine nonstationary signals within the framework of compressive sensing and sparse
reconstruction. Most of these signals, which arise in numerous applications, exhibit small …

Ship target imaging in airborne SAR system based on automatic image segmentation and ISAR technique

R Cao, Y Wang, B Zhao, X Lu - IEEE Journal of Selected Topics …, 2021 - ieeexplore.ieee.org
The airborne synthetic aperture radar (SAR) image of ship target will be blurred for the
complex motion of the target, which will influence the performance of feature extraction and …

Enhanced ISAR imaging and motion estimation with parametric and dynamic sparse Bayesian learning

G Xu, L Yang, G Bi, M **ng - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
This paper is focused on high-resolution inverse synthetic aperture radar (ISAR) imaging
and motion estimation of maneuvering targets from compressively sampled echo data …

Sparsity-based dynamic hand gesture recognition using micro-Doppler signatures

G Li, R Zhang, M Ritchie… - 2017 IEEE Radar …, 2017 - ieeexplore.ieee.org
In this paper, a sparsity-driven method of micro-Doppler analysis is proposed for dynamic
hand gesture recognition with radar sensor. The sparse representation of the radar signal in …

Diffraction signal-based human recognition in non-line-of-sight (NLOS) situation for millimeter wave radar

J He, S Terashima, H Yamada… - IEEE Journal of Selected …, 2021 - ieeexplore.ieee.org
In driver assistance or self-driving systems, millimeter-wave radar is an indispensable
sensing tool because of its applicability to all weather conditions or non-line-of-sight (NLOS) …

A three-dimensional deep learning framework for human behavior analysis using range-Doppler time points

H Du, T **, Y Song, Y Dai, M Li - IEEE geoscience and remote …, 2019 - ieeexplore.ieee.org
Deep neural networks have shown promise in the radar-based human activity analysis
application. Different from existing deep learning models that take either micro-Doppler …

Precession parameter estimation of warhead with fins based on micro-Doppler effect and radar network

R Zhang, Y Wang, C Yeh, X Lu - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Precession is a typical micromotion of a ballistic missile warhead in the middle of the
trajectory. The modulation of the narrow-band radar echo by the precession warhead is …

Effect of sparsity‐aware time–frequency analysis on dynamic hand gesture classification with radar micro‐Doppler signatures

G Li, S Zhang, F Fioranelli… - IET Radar, Sonar & …, 2018 - Wiley Online Library
Dynamic hand gesture recognition is of great importance in human–computer interaction. In
this study, the authors investigate the effect of sparsity‐driven time–frequency analysis on …