Results 1 to 10 of about 81,888 (264)

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

Remote 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, Xiaoling Zhang, Zikang Shao, Jun Shi, Shunjun Wei, Tianwen Zhang, Tianjiao Zeng   +6 more
doaj   +3 more sources

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

Remote 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

IEEE 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, Cunjun Ruan, Rabia Nazir, Muhammad Saleem, Tanveer Ul Haq, Shahid Ullah, Wenlong He   +6 more
doaj   +3 more sources

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

International 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, Fitri Yuli Zulkifli   +1 more
doaj   +1 more source

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

Remote 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, Ryosuke Nakamura, Chiaki Tsutsumi, Yoshio Yamaguchi   +3 more
doaj   +1 more source

A Dual‐Polarization Programmable Metasurface for Green and Secure Wireless Communication [PDF]

Advanced Science
Zheng Xing Wang, Jun Wei Wu, Jun Yan Dai
exaly   +2 more sources

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

IEEE 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, Hai Lin, Fan Yang, Guangyang Xu, Junxiang Ge   +4 more
doaj   +1 more source

Hydrometeor partitioning ratios for dual-frequency space-borne and polarimetric ground-based radar observations [PDF]

Atmospheric Measurement Techniques
Conventional radar-based hydrometeor classification algorithms identify the dominant hydrometeor type within a resolved radar volume, while newer techniques estimate the proportions of individual hydrometeor classes (hydrometeor partitioning ratios, HPRs)
V. Pejcic, K. Mroz, K. Mühlbauer, S. Trömel, S. Trömel   +4 more
doaj   +1 more source

Mitigating Multipath Bias Using a Dual-Polarization Antenna: Theoretical Performance, Algorithm Design, and Simulation

Sensors, 2017
It is well known that multipath effect remains a dominant error source that affects the positioning accuracy of Global Navigation Satellite System (GNSS) receivers.
Lin Xie, Xiaowei Cui, Sihao Zhao, Mingquan Lu   +3 more
doaj   +1 more source

On the Use of Multipolarization Satellite SAR Data for Coastline Extraction in Harsh Coastal Environments: The Case of Solway Firth

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
This study deals with coastline extraction using multipolarization spaceborne synthetic aperture radar (SAR) imagery acquired over coastal intertidal areas.
Emanuele Ferrentino, Andrea Buono, Ferdinando Nunziata, Armando Marino, Maurizio Migliaccio   +4 more
doaj   +1 more source