MIMO Radar Imaging With Multiple Probing Pulses for 2D Off-Grid Targets via Variational Sparse Bayesian Learning
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.3015223
Abstract: Spatial sparsity of the target space has been successfully exploited to provide accurate range-angle images by the methods based on sparse signal reconstruction (SSR) in Multiple-Input Multiple-Output (MIMO) radar imaging applications. The SSR based method… read more here.
Keywords: grid targets; radar imaging; mimo radar; probing pulses ... See more keywords
An Interleaved Broadband Photonic ADC Immune to Channel Mismatches Capable for High-Speed Radar Imaging
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2019.2926399
Abstract: A dual channel interleaved broadband subsampling photonic analog-to-digital converter (ADC) immune to channel mismatches capable for high-speed radar imaging is presented. Through modeling as a combination of photonic subsampling front-end and interleaved Nyquist sampling electronic… read more here.
Keywords: broadband; radar imaging; capable high; channel mismatches ... See more keywords
Passive Radar Imaging by Filling Gaps Between ISDB Digital TV Channels
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"
DOI: 10.1109/jstars.2019.2891114
Abstract: Integrated Services Digital Broadcasting-Terrestrial/Satellite (ISDB-T/S) signal, used in Japan as the digital television (TV) broadcasting standard, is exploited in this paper for passive bistatic radar two-dimensional imaging of stationary targets. A multifunctional system is developed… read more here.
Keywords: imaging filling; radar imaging; passive radar; filling gaps ... See more keywords
A Perturbation-Based Approach for Compressed Sensing Radar Imaging
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Antennas and Wireless Propagation Letters"
DOI: 10.1109/lawp.2016.2557619
Abstract: This letter is concerned with two-dimensional radar imaging via compressed sensing. First, a perturbation-based sparse representation dictionary is established to alleviate the basis mismatch effect, reduce the memory requirement, and accelerate the imaging process. Then,… read more here.
Keywords: compressed sensing; perturbation based; radar imaging; based approach ... See more keywords
Enhanced Radar Imaging Using a Complex-Valued Convolutional Neural Network
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2018.2866567
Abstract: Convolutional neural networks (CNN) have successfully been employed to tackle several remote sensing tasks such as image classification and show better performance than previous techniques. For the radar imaging community, a natural question is: Can… read more here.
Keywords: enhanced radar; radar imaging; complex valued; imaging using ... See more keywords
Spatial Sampling in Monostatic Radar Imaging
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2020.3028938
Abstract: This letter deals with microwave imaging via a migration-like inversion method. The aim is the determination of a spatial sampling scheme which allows to collect as low as possible spatial measurements and to preserve the… read more here.
Keywords: sampling monostatic; spatial sampling; monostatic radar; radar imaging ... See more keywords
Human Posture Reconstruction for Through-the-Wall Radar Imaging Using Convolutional Neural Networks
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2021.3073073
Abstract: Low imaging spatial resolution hinders through-the-wall radar imaging (TWRI) from reconstructing complete human postures. This letter mainly discusses a convolutional neural network (CNN)-based human posture reconstruction method for TWRI. The training process follows a supervision-prediction… read more here.
Keywords: posture reconstruction; wall radar; radar imaging; convolutional neural ... See more keywords
Superresolution Radar Imaging via Peak Search and Compressed Sensing
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2022.3184067
Abstract: Compressed sensing (CS)-based imaging technique is considered to be an effective solution for high-resolution radar imaging due to the sparse distribution of the scatterers. Nevertheless, the unoptimized CS-based synthetic aperture radar (SAR) or inverse SAR… read more here.
Keywords: radar imaging; superresolution radar; compressed sensing; radar ... See more keywords
Compressive Synthetic Aperture Radar Imaging and Autofocusing by Augmented Lagrangian Methods
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Computational Imaging"
DOI: 10.1109/tci.2022.3160670
Abstract: 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 estimating both the phase errors and the underlying… read more here.
Keywords: aperture radar; synthetic aperture; radar imaging; radar ... See more keywords
Coherent MIMO to Improve Aperture Synthesis Radar Imaging of Field-Aligned Irregularities: First Results at Jicamarca
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2017.2788425
Abstract: Multiple-input multiple-output (MIMO) radar techniques make use of multiple transmitters and multiple receivers to improve the spatial characterization of targets. In the case where the Bragg scattering $\vec {k}$ -vector can be assumed to be… read more here.
Keywords: aperture synthesis; radar imaging; synthesis radar; radar ... See more keywords
3-D Radar Imaging of E-Region Field-Aligned Plasma Irregularities by Using Multireceiver and Multifrequency Techniques
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2018.2818331
Abstract: This paper reports the first use of a 3-D radar imaging for observing E-region field-aligned plasma irregularities (FAIs) in the midlatitude ionosphere. Five carrier frequencies equally spaced between 46.25 and 46.75 MHz were transmitted alternately… read more here.
Keywords: radar imaging; region field; field; field aligned ... See more keywords