Results 101 to 110 of about 14,406 (302)

Recent Advances in Programmable Metasurfaces and Meta‐Devices

Advanced Electronic Materials, EarlyView.
Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao, Chong He, Nan Wang, Liming Si, Weiren Zhu   +4 more
wiley   +1 more source

Starlink-Based Passive Radar for Earth's Surface Imaging: First Experimental Results

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
New satellite constellations for broadband Internet service emerge as promising illuminators of opportunity for the of passive radar (PR) applications.
Pedro Gomez-del-Hoyo, Piotr Samczynski
doaj   +1 more source

Passive Radar Tracking in Clutter Using Range and Range-Rate Measurements. [PDF]

Sensors (Basel), 2023
Asif A, Kandeepan S, Evans RJ.
europepmc   +1 more source

Smart Flexible Tactile Sensors: Recent Progress in Device Designs, Intelligent Algorithms, and Multidisciplinary Applications

Advanced Intelligent Discovery, EarlyView.
Flexible tactile sensors have considerable potential for broad application in healthcare monitoring, human–machine interfaces, and bioinspired robotics. This review explores recent progress in device design, performance optimization, and intelligent applications. It highlights how AI algorithms enhance environmental adaptability and perception accuracy
Siyuan Wang, Ming Dong, Rongrong Bao, Caofeng Pan   +3 more
wiley   +1 more source

An Improved Method of FM Radio Channel Selection for a Passive Radar System Based on Signal Environment Analysis

IEEE Access
This study proposes an improved method of frequency modulation (FM) radio channel selection for a passive radar system based on signal environment analysis.
Inhwan Jeong, Sanhae Kim, Hyungyu Kwak, Jonghwan Lee, Kyuha Song   +4 more
doaj   +1 more source

GSM passive radar for medium range surveillance

, 2022
S.49-52This paper presents a passive radar system using GSM as illuminator of opportunity. The new feature is the used high performance uniform linear antenna (ULA) for extracting both the reference and the echo signal in a software defined radar.
Wirth, W.-D., Nickel, U., Zemmari, R.
core  

Recent Advances in Stimulated Brillouin Scattering in Integrated Photonics

Advanced Physics Research, EarlyView.
This review systematically surveys recent advances in stimulated Brillouin scattering (SBS) within integrated photonics. It begins by elucidating the fundamental mechanisms of stimulated coupling between photons and acoustic phonons in nanoscale waveguides, enhanced by the photoelastic and moving boundary effects.
Songyue Liu, Qi Lu, Pan Hu, Yuan Zhong, Yu He, Yaojing Zhang, Young‐Ik Sohn, Yikai Su, Lu Sun   +8 more
wiley   +1 more source

On the resolution performance of passive radar using DVB-T illuminations

, 2022
S.20-23DVB-T signals used as illumination for passive radar offer advantageous radar signal processing properties and promise sufficiently high range resolution.
Heckenbach, J., Kuschel, H., Ummenhofer, M., O'Hagan, D.   +3 more
core  

Leveraging Big Multitemporal Multisource Satellite Data and Artificial Intelligence for the Detection of Complex and Invisible Features: The Case of Extensive Irrigation Mapping

Archaeological Prospection, EarlyView.
ABSTRACT The detection of buried or obscured archaeological features remains a central challenge in landscape archaeology, particularly in the irrigated floodplains of Mesopotamia where levees and canals formed the basis of complex agrarian systems. This study presents a deep learning–based approach for the large‐scale, automated detection of ancient ...
Nazarij Buławka, Hector A. Orengo, Felipe Lumbreras Ruiz, Iban Berganzo‐Besga, Ekta Gupta   +4 more
wiley   +1 more source