Results 1 to 10 of about 3,551 (116)

A Group-Wise Feature Enhancement-and-Fusion Network with Dual-Polarization Feature Enrichment for SAR Ship Detection

open access: yesRemote Sensing, 2022
Ship detection in synthetic aperture radar (SAR) images is a significant and challenging task. However, most existing deep learning-based SAR ship detection approaches are confined to single-polarization SAR images and fail to leverage dual-polarization ...
Xiaowo Xu   +6 more
doaj   +3 more sources

Scattering Mechanism Extraction by a Modified Cloude-Pottier Decomposition for Dual Polarization SAR

open access: yesRemote Sensing, 2015
Dual polarization is a typical operational mode of polarimetric synthetic aperture radar (SAR). However, few studies have considered the scattering mechanism extraction of dual-polarization SARs.
Kefeng Ji, Yonghui Wu
doaj   +3 more sources

Ultra-Thin Metasheet for Dual-Wide-Band Linear to Circular Polarization Conversion With Wide-Angle Performance

open access: yesIEEE Access, 2020
Satellite communication systems require dual-band circularly polarized (CP) waves to integrate receiving and transmit antennas into one dual-band terminal. Polarization converters play an important role in such a scenario to convert the incoming linearly
Ayesha Kosar Fahad   +6 more
doaj   +3 more sources

Extension of Scattering Power Decomposition to Dual-Polarization Data for Tropical Forest Monitoring

open access: yesRemote Sensing, 2023
A new scattering power decomposition method is developed for accurate tropical forest monitoring that utilizes data in dual-polarization mode instead of quad-polarization (POLSAR) data.
Ryu Sugimoto   +3 more
doaj   +1 more source

Design of a Dual-Polarization Dual-Wideband Planar Antenna [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2022
Wireless communication is a fundamental requirement because of its low cost, high flexibility and convenience, continuing improvements in speed and connectivity, and accessibility in remote areas.
A’isya Nur Aulia Yusuf   +1 more
doaj   +1 more source

Pentaband Dual-Polarized Antenna for Multiservice Wireless Applications

open access: yesComputation, 2023
This paper presents a novel design for and an experimental study of a dual-polarized quad-port MIMO antenna. The design achieves resonance at five distinct frequency bands with reduced mutual coupling. The design includes a single annular ring slot, four
A. Ushasree, Vipul Agarwal
doaj   +1 more source

Millimeter-Wave High-Gain Dual-Polarized Flat Luneburg Lens Antenna with Reflection Cancellation

open access: yesApplied Sciences, 2023
Because of its good beam coverage and beam scanning abilities, the Luneburg lens (LL) is a promising multibeam antenna for the fifth-generation (5G) wireless communications.
Yan Zhang, Yinsen Luo, Ran Ji
doaj   +1 more source

Massive MIMO With Dual-Polarized Antennas

open access: yesIEEE Transactions on Wireless Communications, 2023
This paper considers a single-cell massive MIMO (multiple-input multiple-output) system with dual-polarized antennas at both the base station and users. We study a channel model that includes the key practical aspects that arise when utilizing dual-polarization: channel cross-polar discrimination (XPD) and cross-polar correlations (XPC) at the ...
Özgecan Özdogan, Emil Björnson
openaire   +2 more sources

Early-Season Crop Mapping on an Agricultural Area in Italy Using X-Band Dual-Polarization SAR Satellite Data and Convolutional Neural Networks

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Early-season crop mapping provides decision-makers with timely information on crop types and conditions that are crucial for agricultural management.
Giacomo Fontanelli   +10 more
doaj   +1 more source

Design of 94GHz Dual-Polarization Antenna Fed by Diagonal Horn for Cloud Radars

open access: yesIEEE Access, 2022
In this paper, a 94 GHz dual-polarization high-isolation cassegrain antenna feed by a diagonal horn antenna is designed. The antenna consists of a D = 540 mm main reflector, sub-reflector, and dual-port dual-polarization diagonal horn feed antenna.
Jie Wang   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy