Results 81 to 90 of about 17,103 (274)

Frozen Differential Scattering in Reconfigurable Complex Media

Laser &Photonics Reviews, EarlyView.
A localized perturbation universally results in a rank‐one update of the scattering matrix of any complex medium. The resulting differential output wavefront is “frozen”: its spatial pattern is fixed (agnostic to the input wavefront). Experiments with a programmable‐metasurface‐parametrized wireless link validate frozen differential scattering and ...
Philipp del Hougne
wiley   +1 more source

Sea-detecting X-band Radar and Data Acquisition Program

Leida xuebao, 2019
To meet the radar data requirements of target detection technology research and address the lack of publicly available sea-detecting radar data, a data-sharing program for sea-detecting radar is proposed herein.
LIU Ningbo, DONG Yunlong, WANG Guoqing, DING Hao, HUANG Yong, GUAN Jian, CHEN Xiaolong, HE You   +7 more
doaj   +1 more source

Why Autonomous Vehicles Are Not Ready Yet: A Multi‐Disciplinary Review of Problems, Attempted Solutions, and Future Directions

Journal of Field Robotics, EarlyView.
ABSTRACT Personal autonomous vehicles can sense their surrounding environment, plan their route, and drive with little or no involvement of human drivers. Despite the latest technological advancements and the hopeful announcements made by leading entrepreneurs, to date no personal vehicle is approved for road circulation in a “fully” or “semi ...
Xingshuai Dong, Massimiliano Cappuccio, Fady Alnajjar, Luqman Ali, Hamad Al Jassmi, Essam Debie, Milad Ghasrikhouzani, Alessandro Lanteri, Tate McGregor, Oleksandra Molloy, Alice Plebe, Michael Regan, Eduardo Sandoval, Dongmo Zhang   +13 more
wiley   +1 more source

Чувствительность напряжений по обводу контура фантома к изменениям комплексных сопротивлений неоднородностей в электроимпедансной томографии [PDF]

, 2014
Проведено аналіз впливу значень поверхневої провідності неоднорідностей на зміну значень комплексних напруг по обводу контуру фантома, порівняно з однорідним фантомом з комплексною поверхневою провідністю.
Dostal, T., Gaidayenko, E., Matsai, A., Rybin, A., Sushko, I., Гайдаенко, Е.В., Гайдаєнко, Є.В., Достал, Т., Достал, Т., Мацай, А.А., Мацай, А.О., Рибін, О.І., Рыбин, А.И., Сушко, И.А., Сушко, І.О.   +14 more
core  

Sea clutter suppression method for shipborne high‐frequency surface‐wave radar

IET Radar, Sonar & Navigation, 2016
For detection of target submerged in the spread Doppler spectrum of the first‐order sea clutter in shipborne high‐frequency surface‐wave radar (HFSWR), there still remains a challenge. In this study, an improved orthogonal weighting (OW) algorithm is proposed for shipborne HFSWR to suppress sea clutter in both Doppler domain and spatial domain.
Chunlei Yi, Zhenyuan Ji, Junhao Xie, Minglei Sun, Yang Li   +4 more
openaire   +1 more source

Key Technical Fields and Future Outlooks of Space Manipulators: A Survey

SmartBot, EarlyView.
This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen, Zeyuan Huang, Ying Yan, Xiaokang An, Zhikai Zhao, Jirong Lin, Xiangrong Zhao, Xianyuan Gao, Junyi Zong, Xuewen Jia, Zhipeng Yao, Jianliang Liao, Ning Ji   +12 more
wiley   +1 more source

Radar, Insect Population Ecology, and Pest Management [PDF]

Discussions included: (1) the potential role of radar in insect ecology studies and pest management; (2) the potential role of radar in correlating atmospheric phenomena with insect movement; (3) the present and future radar systems; (4) program ...
Klassen, W., Vaughn, C. R., Wolf, W.
core   +1 more source

Simulation Model for Sea Clutter in Airborne Radars [PDF]

, 2011
This paper presents the architecture and the methods used to dynamically simulate the sea backscatter of an airborne radar operating in a medium repetition frequency mode (MPRF).
Besada Portas, Juan Alberto, Miguel Vela, Gonzalo de, Santos Ugarte, Laura   +2 more
core  

A comparative study of operational vessel detectors for maritime surveillance using satellite-borne synthetic aperture radar [PDF]

, 2016
This paper presents a comparative study among four operational detectors that work by automatically post-processing synthetic aperture radar (SAR) images acquired from the satellite platforms RADARSAT-2 and COSMO-SkyMed.
Mallorquí Franquet, Jordi Joan, Margarit, Gerard, Santamaría, Carlos, Stasolla, Mattia, Walker, Nick   +4 more
core   +2 more sources

The social life of money for children

The British Journal of Sociology, EarlyView.
Abstract Inspired by Nigel Dodd's The Social Life of Money, this article proposes an analysis of entangled economic lives, that is, how meaning, structures and politics jointly shape the flow of monies within households. The past decades have marked a shift from “childrearing expenditures” to “parenting investments” that align with new visions of both ...
Nina Bandelj
wiley   +1 more source