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|Title:||Digital processing for non-stationary narrow-band interference suppression in fading channels||Authors:||Kasparis, Takis
Nelson, Russell S.
|Keywords:||Electric filters;Digital signal processing;Adaptive filters;Digital filters;Radio--Interference||Issue Date:||1994||Publisher:||IEEE||Source:||Proceedings of the IEEE SOUTHEASTCON, 1994, Miami, United States||Abstract:||The suppression of narrow-band interference has long been a concern in Direct-Sequence Spread Spectrum (DS-SS) Communication Systems. Recently, transform domain processing (TDP) approaches have been used to suppress intentional interference. This paper extends previous work done in the area of TDP utilizing non-linear rank order filters, namely conditional median filters (CMFs). The paper confronts problems incurred in Rayleigh distributed fading channels. A solution is suggested by introducing a normalized adaptive median filter. This adaptive approach considers each received bit independently and uses a normalization metric to compensate for fading. The paper also presents bit error rates (BER) for a DS-SS receiver employing the proposed approach. Using Monte-Carlo simulations the BER of the fading channel was determined for various jammer and fading scenarios, and results are presented.||URI:||http://ktisis.cut.ac.cy/handle/10488/7210
|ISSN:||07347502||DOI:||10.1109/SECON.1994.324346||Rights:||© 1994 IEEE||Type:||Conference Papers|
|Appears in Collections:||Δημοσιεύσεις σε συνέδρια/Conference papers|
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