Results 21 to 30 of about 6,564,297 (383)
Scientific Reports, 2023 This paper proposes a functionally reconfigurable integrated structure of a Fabry–Perot (FP) antenna and wideband liquid absorber. First, a two-layer partial reflecting surface (PRS) has been designed.
Yukun Zou +4 more
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Passive Radar Imaging of Ship Targets With GNSS Signals of Opportunity
IEEE Transactions on Geoscience and Remote Sensing, 2021 This article explores the possibility to exploit global navigation satellite systems (GNSS) signals to obtain radar imagery of ships. This is a new application area for the GNSS remote sensing, which adds to a rich line of research about the alternative ...
D. Pastina +4 more
semanticscholar +1 more source
Frequency-Scaling-Based Spaceborne Squint SAR Sparse Imaging
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 In synthetic aperture radar (SAR), due to the characteristics of squint data in spaceborne imaging geometry, a more accurate range cell migration correction operation is necessary.
Yufan Song +4 more
doaj +1 more source
Inverse Synthetic Aperture Radar Imaging: A Historical Perspective and State-of-the-Art Survey
IEEE Access, 2021 Radar can obtain high spatial resolution at large operating distances, and its operation is largely independent from weather and lighting conditions. This makes it an important instrument in an ever-increasing number of applications requiring robust and ...
Risto Vehmas, Nadav Neuberger
semanticscholar +1 more source
Slow-Time Code Design for Space-Time Adaptive Processing in Airborne Radar
Entropy, 2021 Space-time adaptive processing (STAP) techniques have been motivated as a key enabling technology for advanced airborne radar applications. In this paper, a slow-time code design is considered for the STAP technique in airborne radar, and the principle ...
Shiyi Li +4 more
doaj +1 more source
Sensors, 2021 High-resolution synthetic aperture radar (SAR) images are mostly used in the current field of ship classification, but in practical applications, moderate-resolution SAR images that can offer wider swath are more suitable for maritime surveillance.
Gaoyu Zhou, Gong Zhang, Biao Xue
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Target Recognition in SAR Images by Deep Learning with Training Data Augmentation
Sensors, 2023 Mass production of high-quality synthetic SAR training imagery is essential for boosting the performance of deep-learning (DL)-based SAR automatic target recognition (ATR) algorithms in an open-world environment.
Zhe Geng +5 more
doaj +1 more source
Through-Wall Multi-Subject Localization and Vital Signs Monitoring Using UWB MIMO Imaging Radar
Remote Sensing, 2021 Radar-based non-contact vital signs monitoring has great value in through-wall detection applications. This paper presents the theoretical and experimental study of through-wall respiration and heartbeat pattern extraction from multiple subjects.
Zhi Li +3 more
semanticscholar +1 more source
IEEE Photonics Journal, 2020 Broadband image-reject mixing using a dual-channel polarization-modulated photonic microwave phase shifter is proposed and experimentally demonstrated.
Yamei Zhang +6 more
doaj +1 more source
Hybrid Attention-Based Encoder–Decoder Fully Convolutional Network for PolSAR Image Classification
Remote Sensing, 2023 Recently, methods based on convolutional neural networks (CNNs) achieve superior performance in polarimetric synthetic aperture radar (PolSAR) image classification.
Zheng Fang +4 more
doaj +1 more source