Results 1 to 10 of about 83,018 (168)
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 +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
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 +3 more
doaj +1 more source
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 +4 more
doaj +1 more source
Massive MIMO With Dual-Polarized Antennas
IEEE 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
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 +6 more
doaj +1 more source
Hydrometeor partitioning ratios for dual-frequency space-borne and polarimetric ground-based radar observations [PDF]
Atmospheric Measurement TechniquesConventional 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 +4 more
doaj +1 more source
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 +3 more
doaj +1 more source
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 +4 more
doaj +1 more source
IEEE Access, 2017 A fast dual polarization hopping (FDPH) system is designed to enhance the physical layer secure transmission in fixed down-link satellite communications. In order to prevent the eavesdropper from detecting transmitted signals, a pair of dual polarization
Xiaokai Zhang +2 more
doaj +1 more source