Results 21 to 30 of about 784,718 (264)
Remote Sensing, 2023 In the framework of maritime surveillance, vessel detection techniques based on spaceborne synthetic aperture radar (SAR) images have promoted extensive applications for the effective understanding of unlawful activities at sea.
Roberto Del Prete +2 more
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Remote Sensing, 2018 To reduce the floor space of receiving antenna arrays, the Radio Ocean Remote SEnsing (RORSE) laboratory of Wuhan University developed a circular receiving array for a multi-frequency high frequency (MHF) radar system in 2014, consisting of seven ...
Chen Zhao +5 more
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Journal of Marine Science and Engineering, 2023 This study was conducted to investigate the acoustic characteristics of largehead hairtails (Trichiurus japonicus) in the Southern Sea of South Korea from April 2022, using 18, 38, 70, 120, and 200 kHz split-beam echosounders.
Hyungbeen Lee +3 more
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A Novel VLSI Architecture for Multi-Constellation and Multi-Frequency GNSS Acquisition Engine
IEEE Access, 2019 This paper proposes a novel VLSI architecture of GNSS acquisition engine based on short-time correlation combined with an FFT scheme. The architecture supports multi-constellation systems and multi-frequency satellite signals flexibly by the manner of ...
Yuheng Yang, Xiaohui Ba, Jie Chen
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Remote Sensing, 2023 Previous studies of GNSS-IR mainly focused on the legacy L1C signal; the potential of modernized signals (L2C and L5Q) has not yet been fully exploited.
Jintao Lei, Wenhao Li, Shengkai Zhang
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A multi-frequency RF photocathode gun [PDF]
AIP Conference Proceedings, 2012 The concept of a photocathode injection gun driven by several harmonically related phase-locked RF sources is considered. This concept is aimed at providing electron bunches with parameters as follows: charge/bunch ≥1 nC, bunch energy 5-10 MeV, bunch width 20-40 ps, and fundamental frequency = 1.3 GHz.
Kuzikova, S. V. +4 more
openaire +2 more sources
The Multi-Frequency Decomposition Entropy Learning for Nonlinear fMRI Data Analysis
IEEE Transactions on Neural Systems and Rehabilitation EngineeringFunctional magnetic resonance imaging (fMRI) have been widely adopted to explore the underlying neural mechanisms between psychiatric disorders which share common neurobiology and clinical manifestations.
Di Han +4 more
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Multi-Frequency Holographic Microwave Imaging for Breast Lesion Detection
IEEE Access, 2019 This paper presents the development of a multi-frequency holographic microwave imaging (HMI) algorithm and investigates the feasibility and effectiveness of the proposed algorithm for breast imaging.
Lulu Wang
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Performance Evaluation of Troposphere Estimated from Galileo-Only Multi-Frequency Observations
Remote Sensing, 2020 The tropospheric delays estimated from the Global Navigation Satellite System (GNSS) have been proven to be an efficient product for monitoring variations of water vapor, which plays an important role in meteorology applications.
Lewen Zhao +2 more
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Global Navigation Satellite System Meta-Signals with an Arbitrary Number of Components
Remote SensingGlobal Navigation Satellite System (GNSS) meta-signals are obtained when components from different frequencies are jointly processed as a single entity.
Daniele Borio
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