Cart (Loading....) | Create Account
Close category search window

Dual update-rate carrier tracking technique for new generation global navigation satellite system signals in dynamic environments

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Yao, Z. ; Dept. of Electron. Eng., Tsinghua Univ., Beijing ; Cui, X. ; Lu, M. ; Feng, Z.

With the upcoming of modernised Global Positioning System (GPS) and Galileo, the new generation global navigation satellite systems (GNSSs) will be able to provide the users a better positioning performance. An important modification on most of the new generation GNSS signal structures is the availability of the pilot channel, which stands for an additional measurement obtained; moreover, a pure phase-locked loop (PLL) can be used in carrier-phase tracking loop. Utilising this characteristic, the authors present a dual update-rate PLL for modernised GNSS signals to deal with the well-known dilemma that the usage of long coherent integral time can help in reducing the noise from thermal effects, whereas the usage of short coherent integral time can permit the tracking loop to suffer more dynamics stress. By processing data and pilot channels with different coherent integral times, different discriminators, and then performing the fusion of those two different update-rate measurements in a Kalman-filter-based loop filter, this loop offers several advantages over the traditional methods in dynamic and low carrier-to-noise ratio (CNR) environments. Simulation results demonstrate that the proposed dual update-rate PLL shows good performance in both dynamic and low CNR environments.

Published in:

Radar, Sonar & Navigation, IET  (Volume:3 ,  Issue: 3 )

Date of Publication:

June 2009

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.