Análisis Comparativo de Filtrado con Wavelet y EMD en Señales de Radar con Ruido Marrón (Comparative Analysis of Wavelet and EMD in the Filtering of Radar Signal Affected by Brown Noise)

Alberto S. Grispino (asgrispino@gmail.com), Gabriel O. Petracca (gopetracca@gmail.com), Alfredo E. Domínguez (adominguez@iua.edu.ar)


Instituto Universitario Aeronaútico
This paper appears in: Revista IEEE América Latina

Publication Date: Feb. 2013
Volume: 11,   Issue: 1 
ISSN: 1548-0992


Abstract:
In Electronic Warfare the goal of the attacker is interfering with communications of his adversary. A common type of attack is Jamming which corrupts the electronic devices signals by introducing intentionally different kinds of noise. In particular, in the context of radar systems, the attackers actions tend to avoid detection by the radar system. In this paper we carry out the signal processing of pulse radar in the presence of brown noise by two different digital filters: Discrete Wavelet Transform, DWT and Empiric Mode Decomposition, EMD. From the comparison between both results we obtain that EMD filtering is much more effective than DWT filtering for the situation described above.

Index Terms:
Brown Noise, Denoise, DWT, EMD, IMF, Jamming, Wavelet   


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