Results 71 to 80 of about 30,922 (261)

Assessment of SWOT for Monitoring Ice‐Marginal Lake Water Levels in Greenland

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract The Surface Water and Ocean Topography (SWOT) satellite mission provides a powerful data set for monitoring global surface water resources. However, its performance for monitoring ice‐marginal lakes in Greenland remains unknown. Due to the scarcity of in situ measurements, this study evaluated the reliability of ice‐marginal lake elevations ...
Xiaoyi Shen, Yubin Fan, Stephen J. Livingstone, Chang‐Qing Ke   +3 more
wiley   +1 more source

Design of an antenna array for a LFM-CW synthetic aperture radar prototype

Dyna, 2020
This paper deals with the design of two identical 1 × 4 patch antenna arrays for a linear frequency modulated (LFM) continuous wave (CW) synthetic aperture radar (SAR) prototype.
Alfonso José Zozaya, Paulino Jesús Del Pino Pettinare   +1 more
doaj   +1 more source

Akuisisi Data Sederhana Untuk Radar FM-CW [PDF]

, 2011
This paper describes the development of a simple data acquisition modul for FM-CW radar. The modul is design to be integrated in a through wall radar system using UWB and FM-CW technologies for life detector application.
Purwoko, A. (Adhi)
core  

A Climatology of Mesoscale Convective System Hazards in the United States and Their Representation in a Convection‐Permitting Model

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract Mesoscale convective systems (MCSs) are large, organized convective storms that frequently produce flash floods and other severe hazards such as damaging winds, hail, and tornadoes. Developing an observationally based MCS hazard climatology is important for establishing a baseline to evaluate the representation of these events in numerical ...
Wenjun Cui, Kimberly A. Hoogewind, Thomas J. Galarneau Jr.   +2 more
wiley   +1 more source

Estimation of break-lock in PLL synthesizers for monopulse radar applications: Experimental and simulation approach

Engineering Science and Technology, an International Journal, 2016
This work presents and estimates the break-lock in phase locked loop (PLL) synthesizers for monopulse radar applications through experimental measurements and computer simulation.
Harikrishna Paik, N.N. Sastry, I. SantiPrabha   +2 more
doaj   +1 more source

Dynamic Hand Gesture Classification Based on Radar Micro-Doppler Signatures [PDF]

, 2016
Dynamic hand gesture recognition is of great importance for human-computer interaction. In this paper, we present a method to discriminate the four kinds of dynamic hand gestures, snapping fingers, flipping fingers, hand rotation and calling, using a ...
Fioranelli, Francesco, Griffiths, Hugh, Li, Gang, Ritchie, Matthew, Zhang, Shimeng   +4 more
core   +2 more sources

A tunable microwave absorption metamaterial inspired by moths evading bat detection

InfoMat, Volume 8, Issue 3, March 2026.
Electromagnetic radiation in the current environment has become complex and uncontrollable due to the advancement of wireless technology. Inspired by the moth surface cilia to bend and evade bat sonar detection, our work introduces a metamaterial incorporating broadband and tunable microwave absorption properties combined with deep learning algorithms.
Yijie Liu, Weimeng Chu, Jintang Zhou, Zhenyu Cheng, Yi Yan, Yuanming Yang, Ruiyang Tan, Shiju Liu, Ping Chen, Yucheng Wang, Lvtong Duan, Yao Ma, Xiangshuai Song, Zhengjun Yao   +13 more
wiley   +1 more source

MXene‐Based Materials: Compositional Engineering for High‐Performance Microwave Absorption

Rare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The rapid advancement of aerospace and electronic information technologies has imposed increasingly stringent requirements on microwave absorbing materials (MAMs), such as high absorption efficiency, lightweight, and environmental stability, making the development of advanced MAMs urgent for both civilian and national defense applications ...
Pan‐Pan Zhou, Shi‐Lin Yuan, Wen‐Yu Cao, Xiao‐Chi Lu, Ya‐Wei Kuang, Xue‐Kun Hong, Yu‐Shen Liu, Li‐Xi Wang, Qi‐Tu Zhang   +8 more
wiley   +1 more source

First Coincident Radar and Optical Observations of a Meteor Radio Afterglow

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract It has been hypothesized that Meteor Radio Afterglows (MRAs) occur due to resonant transition radiation (RTR) where suprathermal electrons emit as they pass through electron density inhomogeneities in a turbulent plasma. Meteor trails are thought to produce suprathermal electrons through anion oxidation, which can be identified through meteor ...
K. S. Obenberger, J. L. Chau, J. Vierinen, D. Vida, L. E. Cordonnier, Z. Balint, M. Clahsen, E. Dao, J. Dowell, J. M. Holmes, R. F. Kelly, D. Kastinen, N. Pfeffer, K. Robinson, G. B. Taylor, J. M. Urco   +15 more
wiley   +1 more source

Near‐Inertial Wave Trapping Inside a Fine‐Scale Anticyclonic Eddy During the BioSWOT‐Med 2023 Cruise: Turbulence and Energy Flux

Journal of Geophysical Research: Oceans, Volume 131, Issue 3, March 2026.
Abstract Near‐inertial waves (NIWs) are an important source of turbulence for the ocean interior. Mesoscale anticyclonic eddies are known to facilitate their propagation at depth while trapping them. However, in situ observations have so far focused on large (>50 ${ >} 50$ km radius), energetic eddies, whereas most of the ocean is populated by smaller,
Robin Rolland, Pascale Bouruet‐Aubertot, Yannis Cuypers, Anthony Bosse, Anne Petrenko, Tancrède Maytie, Aurélien Ponte, Stéphanie Barrillon, Maristella Berta, Baptiste Mourre, Ananda Pascual, Lloyd Izard, Xavier Capet, Gérald Grégori, Francesco d’Ovidio, Andrea Doglioli   +15 more
wiley   +1 more source