Results 31 to 40 of about 3,458,808 (77)

Shadow-Aware Moving Target Detection in ViSAR: A Multiscale CNN–Transformer Hybrid Detection Framework

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Based on the all-weather imaging capability of synthetic aperture radar (SAR), video synthetic aperture radar (ViSAR) enables dynamic ground target monitoring through high-frame-rate continuous observation.
Shangqu Yan, Yaowen Fu, Ruofeng Yu, Chenyang Luo, Wenpeng Zhang, Wei Yang   +5 more
doaj   +1 more source

Experimental Performance Investigation of Digital Beamforming on Synthetic Aperture Radar [PDF]

, 2008
In this paper, we present the experimental results of a Digital Beam Forming (DBF) Synthetic Aperture Radar (SAR) performance on the purpose of the High- Resolution Wide-Swath (HRWS) SAR concept.
Junghyo Kim, Younis, Marwan, Wiesbeck, Werner, Werner Wiesbeck, Kim, Junghyo, Marwan Younis   +5 more
core   +1 more source

Performance Investigation on Scan-On-Receive and Adaptive Digital Beam-Forming for High-Resolution Wide-Swath Synthetic Aperture Radar [PDF]

, 2009
The work investigates the performance of the Smart Multi-Aperture Radar Technique (SMART) Synthetic Aperture Radar (SAR) system for high-resolution wide-swath imaging based on Scan-on-Receive (SCORE) algorithm for receive beam steering.
Bordoni, Federica, Younis, Marwan, Gebert, Nicolas, Krieger, Gerhard, Makhoul Varona, Eduardo   +4 more
core  

Are Pixel Intensities Proportional To Radar Cross Section In SAR Images? [PDF]

, 2012
Radar cross section has long been the measurement quantity of choice to describe the radar reflectivity of point targets in calibrated synthetic aperture radar (SAR) images.
Döring, Björn J., Schwerdt, Marco, Marco Schwerdt, Bjorn J. Doring   +3 more
core   +1 more source

Performance Analysis of Moving Target Shadow Detection in Video SAR Systems

Remote Sensing
The video synthetic aperture radar (ViSAR) system can utilize high-frame-rate scene motion target shadow information to achieve real-time monitoring of ground mobile targets.
Boxu Wei, Anxi Yu, Wenhao Tong, Zhihua He   +3 more
doaj   +1 more source

Single Channel Slow Moving Target Detection Method for Terahertz Video Synthetic Aperture Radar Based on Shadows and Spots

Remote Sensing
Terahertz waves are located in the “transition zone” between millimeter waves and infrared light. Terahertz video synthetic aperture radar (THz-ViSAR) utilizes the high operating frequency, strong radar cross-section intensity, and high azimuth ...
Xiaofan Li, Shuangxun Li, Bin Deng, Qiang Fu, Hongqiang Wang   +4 more
doaj   +1 more source

Data compression in ViSAR sensor networks using non-linear adaptive weighting

EURASIP Journal on Wireless Communications and Networking, 2019
Nowadays, industrial video synthetic aperture radars (ViSARs) are widely used for aerial remote sensing and surveillance systems in smart cities. A main challenge of a group of networked ViSAR sensors in an IoT-based environment is low bandwidth of ...
Mohammad R. Khosravi, Sadegh Samadi
doaj   +1 more source

High Frame Rate ViSAR Based on OAM Beams: Imaging Model and Imaging Algorithm

Remote Sensing
High frame rate imaging of synthetic aperture radar (SAR), also known as video SAR (ViSAR), has attracted extensive research in recent years. When ViSAR system parameters are fixed, there is a technical trade-off between high frame rates and high ...
Xiaopeng Li, Liying Xu, Yongfei Mao, Weisong Li, Yinwei Li, Hongqiang Wang, Yiming Zhu   +6 more
doaj   +1 more source

A Video SAR Multi-Target Tracking Algorithm Based on Re-Identification Features and Multi-Stage Data Association

Remote Sensing
Video Synthetic Aperture Radar (ViSAR) operates by continuously monitoring regions of interest to produce sequences of SAR imagery. The detection and tracking of ground-moving targets, through the analysis of their radiation properties and temporal ...
Anxi Yu, Boxu Wei, Wenhao Tong, Zhihua He, Zhen Dong   +4 more
doaj   +1 more source

High-Precision Moving Target Shadow Detection Algorithm for ViSAR Based on Information Geometry

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Video synthetic aperture radar (ViSAR) attracts much attention in the field of moving target detection due to its high frame rate and high-resolution imaging capability.
Shangqu Yan, Yaowen Fu, Ruofeng Yu, Chenyang Luo, Wenpeng Zhang, Wei Yang   +5 more
doaj   +1 more source