NDLI: Robust GNSS signal tracking algorithm based on vector tracking loop under ionospheric scintillation conditions

Content Provider	IEEE Xplore Digital Library
Author	Xia, Jun Yue, Fuzhan Wang, Pingping Wang, Shuo
Copyright Year	2014
Description	Author affiliation: Beijing Institute of Satellite Information Engineering, China (Xia, Jun; Yue, Fuzhan; Wang, Pingping; Wang, Shuo)
Abstract	Ionospheric scintillation can cause GNSS (Global Navigation Satellite System) signal with severe random fluctuations, leading to the loss of tracking loop, which makes the GNSS receiver unable to provide normal positioning service. This paper proposes a robust GNSS signal tracking algorithm based on vector delay/frequency lock loop (VDFLL) under ionospheric scintillation, in order to accomplish information sharing between all channels and adaptive regulation of loop noise bandwidth by using a Kalman filter, which allows it to adapt to ionospheric scintillation. Firstly it presents the basic theory of VDFLL. Then introduces the VDFLL into the anti-scintillation loop and completes the design of the anti-scintillation loop. Lastly the robust tracking algorithm based on VDFLL is implemented in a software receiver. The simulation results show that: when the scintillation index S4 is 0.9, the Doppler frequency standard deviation of the traditional scalar tracking loop (STL) is 0.4204, however, the Doppler frequency standard deviation of the anti-scintillation tracking algorithm based on VDFLL proposed in this paper is 10.6188. It can be seen that the anti-scintillation algorithm proposed in this paper has a better tracking performance under strong ionospheric scintillation situation.
Starting Page	2385
Ending Page	2389
File Size	742636
Page Count	5
File Format	PDF
ISBN	9781479921881
ISSN	21645221
e-ISBN	9781479921867
DOI	10.1109/ICOSP.2014.7015421
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-19
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Tracking loops Vectors Global Positioning System Frequency locked loops Doppler effect Satellites Time-frequency analysis VDFLL ionospheric scintillation vector tracking loop
Content Type	Text
Resource Type	Article

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