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Journal of Electrical and Computer Engineering - Volume 2015 2015, Article ID 679505, 6 pages -

Research ArticleDepartment of Electronic Engineering, University of Rome -Tor Vergata-, 00133 Rome, Italy

Received 13 July 2015; Accepted 13 August 2015

Academic Editor: Chi Chung Ko

Copyright © 2015 Amirhossein Fereidountabar et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Mathematical analysis and optimization of a carrier tracking loop are presented. Due to fast changing of the carrier frequency in some satellite systems, such as Low Earth Orbit LEO or Global Positioning System GPS, or some planes like Unmanned Aerial Vehicles UAVs, high dynamic tracking loops play a very important role. In this paper an optimized tracking loop consisting of a third-order Phase Locked Loop PLL assisted by a second-order Frequency Locked Loop FLL for UAVs is proposed and discussed. Based on this structure an optimal loop has been designed. The main advantages of this approach are the reduction of the computation complexity and smaller phase error. The paper shows the simulation results, comparing them with a previous work.

Autor: Amirhossein Fereidountabar, Gian Carlo Cardarilli, and Marco Re

Fuente: https://www.hindawi.com/


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