Table of Contents
International Journal of Navigation and Observation
Volume 2014, Article ID 262186, 14 pages
Research Article

Use of the Wavelet Transform for Interference Detection and Mitigation in Global Navigation Satellite Systems

Department of Electronics and Telecommunications, Politecnico di Torino, Corso Duca degli Abruzzi 24,10129 Turin, Italy

Received 9 October 2013; Revised 20 December 2013; Accepted 30 December 2013; Published 26 February 2014

Academic Editor: Sandro Radicella

Copyright © 2014 Luciano Musumeci and Fabio Dovis. 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.


Radio frequency interference detection and mitigation are becoming of paramount importance due to the increasing number of services and applications based on the position obtained by means of Global Navigation Satellite Systems. A way to cope with such threats is the implementation in the receiver of advanced signal processing algorithm able to raise proper warning or improve the receiver performance. In this paper, we propose a method based on the Wavelet Transform able to split the useful signal from the interfering component in a transformed domain. The wavelet packet decomposition and proper statistical thresholds allow the algorithm to show very good performance in case of multiple pulse interference as well as in the case of narrowband interference, two scenarios in which traditional countermeasures might not be effective.