NDLI: Orbit determination algorithm and performance analysis of high-orbit spacecraft based on GNSS

Content Provider	IET Digital Library
Author	Zou, Deyue Zhang, Qi Cui, Yongen Liu, Yunfeng Zhang, Jing Cheng, Xinyi Liu, Jie
Abstract	The study of using the Global Navigation Satellite System (GNSS) to locate Geostationary Earth Orbit (GEO) satellites is very valuable. In this thesis, a new RF strategy is proposed. The back-lobe signal and the main-lobe signal of GNSS satellites are used to provide positioning services for GEO satellites and the receiver antenna beam-forming method is used to improve receiver sensitivity. Additionally, this thesis proposes a satellite selection algorithm that matches the proposed RF strategy. The simulation found that the receiver needs higher sensitivity to detect the back-lobe signal of the GNSS satellite but that the number of visible satellites had doubled and the geometric distribution of the satellite had also been greatly improved. The simulation based on the measured data proves that using a 16*16 antenna array and beam-forming by maximum signal-to-interference and noise ratio algorithm can make five beams of GNSS receivers in GEO orbit and that the side-lobe suppression ratio is up to − 55 dB, which greatly improves the signal receiving gain. After adopting the above technology, the GPS positioning accuracy of GEO spacecraft can be optimised from the order of kilometres to the metres.
Starting Page	3377
Ending Page	3382
Page Count	6
ISSN	17518628
Volume Number	13
e-ISSN	17518636
Issue Number	Issue 20, Dec (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/13/20
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2019.0434
Journal	IET Communications
Publisher Date	2019-09-20
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	16*16 Antenna Array Antenna Array Artificial Satellites Back-lobe Signal Determination Algorithm GEO Orbit GEO Satellites GEO Spacecraft Geostationary Earth Orbit Satellites Global Navigation Satellite System Global Positioning System GNSS Receiver GNSS Satellite High-orbit Spacecraft Main-lobe Signal Maximum Signal-to-interference Noise Figure 55.0 DB Performance Analysis Radio Navigation And Direction Finding Radio Receiver Receiver Antenna Beam-forming Method Receiver Sensitivity Receiving Antenna RF Strategy Satellite Communication System Satellite Navigation Satellite Selection Algorithm Side-lobe Suppression Ratio Signal Receiving Gain Space Vehicle Visible Satellites
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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