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Use of the Wavelet Transform for Interference Detection and Mitigation in Global Navigation Satellite Systems
Author(s) -
Luciano Musumeci,
Fabio Dovis
Publication year - 2014
Publication title -
international journal of navigation and observation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.176
H-Index - 18
eISSN - 1687-6008
pISSN - 1687-5990
DOI - 10.1155/2014/262186
Subject(s) - interference (communication) , computer science , wavelet packet decomposition , wavelet , wavelet transform , network packet , signal (programming language) , real time computing , satellite , narrowband , electronic engineering , telecommunications , algorithm , artificial intelligence , engineering , channel (broadcasting) , computer security , programming language , aerospace engineering
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 effectiv

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