Results 31 to 40 of about 59,812 (299)

Compact Dual Band Feed System for a Multifrequency Atmospheric Radar

open access: yesIEEE Open Journal of Antennas and Propagation, 2022
The design, simulations and measurement results of a dual frequency feed horn operating at 35.75 GHz (Ka-band) and 94.05 GHz (W-band) are presented. The horn is designed to be used as a feed for a multifrequency atmospheric radar.
Srinivas Nagaraja   +3 more
doaj   +1 more source

SPOT-GPR: a freeware tool for target detection and localizationin GPR data developed within the COST action TU1208 [PDF]

open access: yes, 2017
SPOT-GPR (release 1.0) is a new freeware tool implementing an innovative Sub-Array Processing method, for the analysis of Ground-Penetrating Radar (GPR) data with the main purposes of detecting and localizing targets.
Meschino, Simone, Pajewski, Lara
core   +1 more source

Rescue Radar System with Array Antennas

open access: yesTransactions of the Society of Instrument and Control Engineers, 2008
The purpose of this study is to improve rescue radar system with array antennas so that it can quickly identify far-off survivors under rubble. Authors focused on time-variable elements from the respiration of a survivor awaiting rescue in order to remove clutter components, such as the rubble.
T. Takeuchi   +5 more
openaire   +2 more sources

Ultra Wideband Planar Microstrip Array Antennas for C-Band Aircraft Weather Radar Applications

open access: yesInternational Journal of Antennas and Propagation, 2017
A miniaturized ultra wideband (UWB) planar array antennas for C-band aircraft weather RADAR applications is presented. Firstly, the effect of the ground plane is studied.
Abdellatif Slimani   +3 more
doaj   +1 more source

Research on Motion Compensation for Airborne Forward Looking Synthetic Aperture Radar with Linear Array Antennas

open access: yesLeida xuebao, 2013
Combined with Frequency-Modulated Continuous-Wave (FMCW) technology, airborne forward-looking Synthetic Aperture Radar (SAR) with linear array antennas can obtain the image in front of the aircraft and also have the advantages of FMCW radar such as small
Zhang Ying-jie   +3 more
doaj   +1 more source

Exploiting the Functionality of Cerium Oxide‐Modified Carbon Nanohorns Catalysts Toward Enhanced CO2 Reduction Performance

open access: yesAdvanced Functional Materials, EarlyView.
A cerium oxide‐carbon nanohybrid catalyst is synthesized via two distinct routes and is integrated into H‐type cells and gas diffusion layers (GDLs) to enhance electrochemical performance. Structural variations significantly affect performance, with the solvothermal sample exhibiting higher current densities.
Alessia Pollice   +9 more
wiley   +1 more source

FM/CW system measures aircraft attitude [PDF]

open access: yes, 1965
FM/CW radar system measures attitude of an approaching aircraft relative to a ground station.

core   +1 more source

MIMO Radar Ambiguity Properties and Optimization Using Frequency-Hopping Waveforms [PDF]

open access: yes, 2008
The concept of multiple-input multiple-output (MIMO) radars has drawn considerable attention recently. Unlike the traditional single-input multiple-output (SIMO) radar which emits coherent waveforms to form a focused beam, the MIMO radar can transmit ...
Chen, Chun-Yang, Vaidyanathan, P. P.
core   +2 more sources

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

open access: yesAdvanced Functional Materials, EarlyView.
A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding   +7 more
wiley   +1 more source

Large space antenna technology applied to radar-imaging, rain-rate measurements, and ocean wind sensing [PDF]

open access: yes, 1985
During the last decade, the utility of spaceborne microwave remote sensing systems for ocean windspeed measurement, ocean wave imaging and sea ice studies was demonstrated.
Gogineni, S., Moore, R. K.
core   +1 more source

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