Results 31 to 40 of about 4,285,302 (266)
Bootstrap frequency equalisation for MIMO wireless systems [PDF]
, 2003 The paper reports on a new class of equalisation/detection for wideband multiple input-multiple output (MIMO) communications systems. The proposed scheme is somewhat akin to a multi-carrier MIMO system, and more precisely, builds upon a single carrier ...
Nix, AR +4 more
core +1 more source
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
doaj +1 more source
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
doaj +1 more source
GNSS Signals Acquisition and Tracking in Unfavorable Environment [PDF]
Radioengineering, 2018 In this paper, we propose a method based on applying specific transformations to the Global Navigation Satellite System (GNSS) signals received in unfavorable environment.
S. Chebir +4 more
doaj
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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Joint Channel, Carrier-Frequency-Offset and Noise-Variance Estimation for OFDM Systems Based on Expectation Maximization [PDF]
, 2010 In this paper, a joint channel, carrier-frequency-offset (CFO) and noise-variance estimation scheme is proposed for OFDM systems which is based on Expectation and Maximization (EM) algorithm.
Xiaomin Mu +5 more
core +1 more source
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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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
doaj +1 more source
Remote Sensing, 2021 Following the continuous and stable regional service of BDS2, the BDS3 officially announced its global service in July 2020. To fully take advantage of the new multi-frequency BDS3 signals in ionosphere sensing and positioning, it is essential to ...
Min Li, Yunbin Yuan
doaj +1 more source