Results 71 to 80 of about 679,625 (215)

Hierarchical Physical‐Cyber Encryption via Metasurface‐Encoded Holographic Keys

Advanced Science, Volume 13, Issue 57, 14 October 2026.
ABSTRACT Physical‐layer encryption based on metasurfaces has emerged as a promising alternative to conventional algorithmic cryptography by embedding security into physical processes. However, most existing metasurface‐based encryption schemes operate within single‐stage or static frameworks, where correct physical illumination directly reveals the ...
Zhen Liu, Changhong Dai, Wei Zhu, Ruisheng Yang, Bohan Zhang, Lei Zhang, Bobo Du, Shengxiang Wang, Guangwei Hu   +8 more
wiley   +1 more source

Performance Evaluation of Two Multistatic Radar Detectors on Real and Simulated Sea-Clutter Data [PDF]

, 2018
In this paper we evaluate the performance of two multistatic radar detection schemes on real and synthetically-generated sea clutter data. The analysis utilizes both monostatic and bistatic radar data, simultaneously collected by the nodes of the N etRAD
Rosenberg, L, Palamá, R, Griffiths, H, Luke Rosenberg, Riccardo Palama, Hugh Griffiths   +5 more
core   +1 more source

Detection Capability Improvement of High PRF FM Ranging Airborne Radar with Clutter Rejection [PDF]

Journal of Electromagnetic Engineering and Science
In this paper, the clutter rejection threshold corresponding to the maximum Doppler frequency of mainlobe clutter in high pulse repetition frequency airborne radar with frequency modulation (FM) ranging is proposed.
Ji Hwan Yoon, Jin Ju Won, Ji Eun Roh
doaj   +1 more source

The Wessex Convection Experiment (WesCon)–Observing the Evolving Structures of Turbulence (WOEST): Coordinated Aircraft and Ground‐Based Observations of Turbulence and Convection in Southwest England During Summer 2023

Geoscience Data Journal, Volume 13, Issue 4, October 2026.
This paper summarises a coordinated field campaign in southern England in summer 2023 as part of the ParaChute programme, which studied atmospheric turbulence to improve weather and climate models. The field campaign used ground‐based instruments, aircraft and drones to observe turbulence and storms, creating datasets to develop better turbulence ...
Sarah L. Barr, Ryan R. Neely III, David M. Schultz, Thorwald H. M. Stein, Steven J. Abel, Michael Baidu, Paul A. Barrett, Lindsay J. B. Rhodes, Jake Bland, Timothy Darlington, Edward Gryspeerdt, Natalie J. Harvey, Humphrey W. Lean, Chun Hay Brian Lo, Aoife McQuaid, Emily G. Norton, Simon R. Osborne, Ben S. Pickering, Philip Rosenberg, Hugo M. Ricketts, Joseph Robinson, Robert J. Thompson, Christopher J. Walden, Freya I. Addison, Jennifer K. Brooke, Peter Clark, Ronald Clark, Martin I. Daily, Alex Fearn, Polly B. Foster, Suzanne L. Gray, James Groves, Kirsty E. Hanley, Amanda Kerr‐Munslow, Jona Keimer, Martin Kumm, Justin M. Langridge, Jacob Lin, Laurents R. R. Marker, James R. McGregor, Heather Moore, Benjamin J. Murray, Jeremy D. Price, Alexander J. Roberts, Robert W. Scovell, Jens Wellhausen, Alison J. Stirling   +46 more
wiley   +1 more source

Multi-phase centre coherent radar sea clutter modelling and simulation

, 2022
S.1359-1366Two-component clutter models are utilised to model and simulate the spatial-temporal characteristics of radar sea clutter backscatter returns from moving airborne platforms.
Cerutti-Maori, D., McDonald, M.
core   +1 more source

Analysis of a Pareto Mixture Distribution for Maritime Surveillance Radar

Journal of Electrical and Computer Engineering, 2012
The Pareto distribution has been shown to be an excellent model for X-band high-resolution maritime surveillance radar clutter returns. Given the success of mixture distributions in radar, it is thus of interest to consider the effect of Pareto mixture ...
Graham V. Weinberg, Daniel Finch
doaj   +1 more source

Deep Learning–Based Fusion of Multi‐Source Precipitation in Complex Terrain: A Case Study Over Chongqing, China

Geoscience Data Journal, Volume 13, Issue 4, October 2026.
Spatial distribution of hourly cumulative precipitation from station observations (a), GPM IMERG (b), SWAN QPE (c), GModel (d), QModel (e), and GQModel (f) during the 27 July 2023 heavy rainfall event over Chongqing, China. ABSTRACT Accurately capturing the spatial distribution of precipitation over complex terrain remains a major challenge in ...
Rong Mu, Xinyue Li, Jun Yu, Hongping Gu, Chengzhi Deng   +4 more
wiley   +1 more source

Modeling rainfall drop size distribution moments using an S‐band polarimetric radar in complex terrain

Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 780, October 2026 Part A.
Using S‐band dual‐polarization radar and disdrometers during PRECIP 2022 in Taiwan, we analyze a Mei‐Yu frontal event with widespread stratiform rain and embedded convection. Multiple disdrometers are used to create a novel drop size distribution model for S‐band radars resolving both the drizzle and precipitation modes. The model reveals both inferred
Ian C. Cornejo, Angela K. Rowe, Michael M. Bell, Wei‐Yu Chang   +3 more
wiley   +1 more source

Sea clutter power reduction in pulse forward scatter radar

, 2018
A Forward Scatter Radar (FSR) system does not have range resolution so the clutter is collected from the whole surface illuminated by the antenna radar.
Porfido, M. B., M. B. Porfido, M. Cherniakov, M. Gashinova, PORFIDO, MARIA BIANCA, M. Martorella, Martorella, M., Gashinova, M., Cherniakov, M., CHERNIAKOV, MIKHAIL, Martorella, M.; id_orcid   +10 more
core   +1 more source

Overview of Space-Time Adaptive Processing for Airborne Multiple-Input Multiple-Output Radar

Leida xuebao, 2015
Multiple-Input Multiple-Output (MIMO) radar is an emerging radar system that is of great interest to military and academic organizations due to its advantages and extensive applications.
Wang Ting, Zhao Yong-jun, Hu Tao
doaj   +1 more source