Temporal Spectrum Analysis for Multi-Constellation Space Domain Awareness
Space Domain Awareness (SDA) system has different major aspects including continues and robust awareness from the network that is crucial for an efficient control over all actors in space. The observability of the space assets on the other hand requires efficient analysis on when and how observed space objects can be controlled.
Mansour Naslcheraghi +1 more
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A Novel VLSI Architecture for Multi-Constellation and Multi-Frequency GNSS Acquisition Engine
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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To further enhance the covert communication capability of satellite–ground-integrated sensor networks, a dual-polarization constellation joint modulation scheme based on frequency-hopping double-layer multi-parameter weighted fractional Fourier transform
Lei Ni +5 more
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Galileo: The Added Value for Integrity in Harsh Environments
A global navigation satellite system (GNSS)-based navigation is a challenging task in a signal-degraded environments where GNSS signals are distorted by multipath and attenuated by fading effects: the navigation solution may be inaccurate or unavailable.
Daniele Borio, Ciro Gioia
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Fast Screening Algorithm for Satellites Based on Multi-Constellation System
This paper proposes a fast satellite screening algorithm aimed at the problem of balancing between positioning accuracy and system computing efficiency in a multi-constellation system environment under the Global Navigation Satellite System (GNSS).
Weidong Zhou, Zhiqiang Wu
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Chromaticity-Adaptive Generalized Spatial Modulation for MIMO VLC With Multi-Color LEDs
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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An Innovative Low-Power, Low-Cost, Multi-Constellation Geodetic-Grade Global Navigation Satellite System Reference Station for the Densification of Permanent Networks: The GREAT Project. [PDF]
Curone D +11 more
europepmc +1 more source
Effects of Equatorial Plasma Bubbles on Multi-GNSS Signals: A Case Study over South China
Equatorial 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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Combating Single-Frequency Jamming through a Multi-Frequency, Multi-Constellation Software Receiver: A Case Study for Maritime Navigation in the Gulf of Finland. [PDF]
Islam S +3 more
europepmc +1 more source
GNSS Signals Acquisition and Tracking in Unfavorable Environment [PDF]
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
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