Results 61 to 70 of about 18,773 (179)
Multi-constellation GNSS data processing using the MAFA method
, 2023 Overlapping signals from GPS and Galileo bring opportunities for more precise and reliable positioning. However, this also creates new challenges. One of the main problems in processing GPS and Galileo observations is the need for Inter-System Bias (ISB) estimation.Twenty permanent GNSS stations were used in tests.
Kwaśniak, D., Cellmer, S.
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Chromaticity-Adaptive Generalized Spatial Modulation for MIMO VLC With Multi-Color LEDs
IEEE Photonics Journal, 2019 In this paper, we propose a chromaticity-adaptive generalized spatial modulation (CA-GSM) method for multiple-input multiple-output (MIMO) visible light communication (VLC) systems with quadrichromatic LEDs (QLEDs).
Ye Xiao, Yi-Jun Zhu
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A Galileo IOV Assessment: Measurement and Position Domain [PDF]
, 2014 The European GNSS, Galileo, is currently in its In-Orbit Validation (IOV) phase where four satellites are finally available for computing the user position.
ANGRISANO Antonio +4 more
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SCMA codebook design based on resource block constellation
Tongxin xuebao, 2018 Aiming at the problems of typical sparse code multiple access codebook design scheme based on multidimensional mother constellation that the complexity is high and the minimum Euclidean distance between constellation points on resource blocks is ...
Xiaotao SHAO, Mingkun GUO, Wei YANG
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Concept for a Dual Frequency Dual Constellation GBAS [PDF]
, 2015 This paper proposes one possible concept for a dual frequency dual constellation GBAS architecture. It is based on a single frequency L5/E5a mode as primary processing scheme for best standard performance, a switch to an ionosphere free combination in ...
Belabbas, Boubeker +8 more
core
PARASITIC PROBE FED MICROSTRIP ANTENNA FOR MULTI-CONSTELLATION GNSS
Progress In Electromagnetics Research Letters, 2013 The design approach and development of a right hand circularly polarized wideband microstrip antenna for multi- constellation Global Navigation Satellite System (GNSS) is presented. The antenna is corner truncated square patch, parasitically excited by a dielectric covered straight probe.
Ashwani Kumar +4 more
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Topology control of satellite networks for multi-layer and multi-domain mega-constellation
Tongxin xuebaoIn view of the time-varying nature of the single-satellite mission in the mega constellation, the resulting overload, the vulnerability of a single node, and the high reliability requirements of the network control plane, the topology control of ...
XU Xiaofan +5 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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Estimation and analysis of multi-GNSS differential code biases using a hardware signal simulator [PDF]
, 2018 In ionospheric modeling, the differential code biases (DCBs) are a non-negligible error source, which are routinely estimated by the different analysis centers of the International GNSS Service (IGS) as a by-product of their global ionospheric analysis ...
A Hauschild +26 more
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Effects of Equatorial Plasma Bubbles on Multi-GNSS Signals: A Case Study over South China
Remote SensingEquatorial plasma bubbles (EPBs) occur frequently in low-latitude areas and have a non-negligible impact on navigation satellite signals. To systematically analyze the effects of a single EPB event on multi-frequency signals of GPS, Galileo, GLONASS, and
Hao Han +12 more
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