NDLI: Jamming mitigation in global positioning system receivers using wavelet packet coefficients thresholding

Content Provider	IET Digital Library
Author	Mosavi, Mohammad Reza Pashaian, Matin Rezaei, Mohammad Javad Mohammadi, Karim
Abstract	In this paper, the authors describe a new pre-correlation mitigation technique for global positioning system (GPS) receivers. Proposed mitigation technique is based on wavelet packet coefficients thresholding. This technique employs adaptive thresholding to mitigate GPS jammers. The authors compare proposed technique against discrete wavelet coefficient thresholding method. In this paper, the interferers are generated by an RF signal generator. The received GPS signal and interference are combined in a combiner. Then, the combined signal is processed by a software GPS receiver which includes the proposed mitigation technique. Simulation results show benefits of the proposed method in terms of signal-to-noise power ratio improvement and mean square error (MSE) in contrary to previous methods. Comparison of presented method and the discrete wavelet method illustrates that the average improvement is 50% and 80% in terms of SNR improvement and MSE, respectively.
Starting Page	457
Ending Page	464
Page Count	8
ISSN	17519675
Volume Number	9
e-ISSN	17519683
Issue Number	Issue 5, Jul (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-spr/9/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-spr.2014.0280
Journal	IET Signal Processing
Publisher Date	2015-06-08
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Code Division Multiple Access Correlation Method Direct Sequence Spread Spectrum Communication Electromagnetic Compatibility Global Positioning System Global Positioning System Receiver Integral Transforms in Numerical Analysis Interference Interpolation And Function Approximation Jamming Jamming Mitigation Mean Square Error Method Multiple Access Communication Numerical Analysis Precorrelation Mitigation Technique Radio Receiver RF Signal Generator Satellite Communication System Signal Generator Signal Processing And Detection Signal-to-noise Power Ratio Improvement Spread Spectrum Communication Wavelet Packet Coefficient Thresholding Wavelet Transform
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

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