NDLI: A valid comparison of vector and scalar tracking loops

Content Provider	IEEE Xplore Digital Library
Author	Lashley, M. Bevly, D.M. Hung, J.Y.
Copyright Year	2010
Description	Author affiliation: Electrical and Computer Engineering Department, Auburn University, AL 36849, USA (Hung, J.Y.) \|\| Mechanical Engineering Department, Auburn University, AL 36849, USA (Bevly, D.M.) \|\| Navigation Technology Associates, Huntsville, Alabama 35802, USA (Lashley, M.)
Abstract	This paper analyzes the benefits offered by vector tracking loops relative to scalar tracking loops. A method for designing equivalent scalar and vector tracking loops is first introduced. The benefits of vector tracking are then determined by comparing the two equivalent algorithms. The improvements in signal tracking afforded by vector tracking are quantified in different scenarios using covariance analysis and Monte Carlo simulations. The vector tracking algorithms show a maximum improvement in tracking threshold of 6.2 dB with an eleven satellite constellation and a minimum improvement of 2.4 dB with a five satellite constellation. The results presented in this paper demonstrate the amount of improvement vector tracking can provide in different situations. Furthermore, the analysis technique used to design the equivalent tracking loops provides a simple way to compare other attributes of the algorithms, such as their multipath immunity and robustness.
Starting Page	464
Ending Page	474
File Size	475664
Page Count	11
File Format	PDF
ISBN	9781424450367
ISSN	21533598
DOI	10.1109/PLANS.2010.5507215
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Tracking loops Algorithm design and analysis Design methodology Satellite constellations Global Positioning System Frequency locked loops Signal processing Navigation Paper technology Mechanical engineering ultra-tight coupling GPS vector tracking vector delay lock loop vector frequency lock loop deep integration
Content Type	Text
Resource Type	Article

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