Results 21 to 30 of about 7,321 (240)

An Overview on Development of Passive Radar Based on the Low Frequency Band Digital Broadcasting and TV Signals

Leida xuebao, 2012
Starting from the detection principle and characteristics of passive radar, this paper describes the development of passive radar based on the low frequency band (HF/VHF/UHF) digital broadcasting and TV signal.
Wan Xian-rong
doaj   +1 more source

Coastal Shipping Radar Monitoring System with Satellites as Transmitters of Opportunity

Известия высших учебных заведений России: Радиоэлектроника, 2022
Introduction. With the development of technology and science, passive radar systems operating on the basis of third-party transmitters of illumination signal sources are increasingly attracting research interest.
Van Quan Nguyen
doaj   +1 more source

LTE-based passive radar for drone detection and its experimental results

The Journal of Engineering, 2019
To satisfy growing demands of detection of illegally used drones, this study has investigated the feasibility of drone detection by passive radar exploiting wide available long-term evolution (LTE) downlink signal.
Yangpeng Dan, Jianxin Yi, Xianrong Wan, Xianrong Wan, Yunhua Rao, Benjing Wang   +5 more
doaj   +1 more source

Rotating Target Detection Using Commercial 5G Signal

Applied Sciences
Passive radar detection emerges as a pivotal method for environmental perception and target detection within radar applications. Through leveraging its advantages, including minimal electromagnetic pollution and efficient spectrum utilization, passive ...
Penghui Chen, Liuyang Tian, Yujing Bai, Jun Wang   +3 more
doaj   +1 more source

Full-pulse Multi-jammer Cooperative Jamming Method for Active-passive Radar Composite Detection

Leida xuebao
In an increasingly complex electromagnetic environment, the composite detection of active-passive radar, with its excellent complementary advantages, has become an important working mode for enhancing the combat capability and anti-interference ...
Wen JIANG, Qiong JIA, Zhen LIU, Yanping WANG, Yun LIN, Yang LI, Wenjie SHEN   +6 more
doaj   +1 more source

Application overview and development trend of passive radar in civil aviation

The Journal of Engineering, 2019
The overall technology of passive radar and application overview in civil aviation are reviewed here, and the research history and status in this field are introduced.
Qiang Zhang, Qingyu Zhang, Zhengyuan Wu, Yixin Zhao, Hua Li, Weijun Pan   +5 more
doaj   +1 more source

Signal Processing in Passive Radar Systems Using 5G: A Simulation Study

Известия высших учебных заведений России: Радиоэлектроника
Introduction. Research into the potential use of new telecommunication signals for illumination in passive radar systems is an important task. The development of communication technologies, particularly the emergence of 5G, offers opportunities for the ...
Van Tuan Nguyen, V. M. Kutuzov, E. N. Vorobev   +2 more
doaj   +1 more source

Ion‑Mediated Structural Engineering of Hydrogel Interfaces for Tunable Mechanical and Analyte Diffusion Properties in Electrochemical Biosensors

Advanced Materials, EarlyView.
An ion‐mediated structural engineering strategy enables versatile modulation of PVA–Alginate hydrogel microstructure. We systematically examine how different ion combinations affect hydrogel mechanical properties and analyte diffusivity. Applying this novel strategy to hydrogel as the outer membrane in an electrochemical glucose biosensor allows ...
Dongwook Lee, Soo A Kim, Beom‐Jun Shim, Yurim Lee, Tae Young Kim, Sunghyun Park, Yeontaek Lee, Hyeong Gyu Choi, Kayoung Son, Su Bin Han, Keun‐Young Yook, Seo Jung Kim, Won‐Yong Lee, Jungmok Seo, Jayoung Kim   +14 more
wiley   +1 more source

First-order Sea Clutter Modeling and Simulation of High Frequency Passive Radar

Leida xuebao, 2015
High Frequency (HF) passive radar is a typical bistatic radar, and the modeling and simulation of sea clutter in bistatic radar are worth researching for HF passive radar.
Cheng Feng, Zeng Qing-ping, Gong Zi-ping
doaj   +1 more source

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

Advanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha, Bilguun Nurzed, Mostafa Berangi, Andre Kuehne, Helmar Waiczies, Igor Fabian Tellez Ceja, Xiang Hu, Thomas Gladytz, Lisa Krenz, Dave Huebler, Beate Endemann, Claudia Brockmann, Ebba Beller, Oliver Stachs, Thoralf Niendorf   +14 more
wiley   +1 more source