Title

Digital Processing For Non-Stationary Narrow-Band Interference Suppression In Fading Channels

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.

Publication Date

1-1-1994

Publication Title

Conference Proceedings - IEEE SOUTHEASTCON

Number of Pages

408-412

Document Type

Article; Proceedings Paper

Identifier

scopus

Personal Identifier

scopus

Socpus ID

0028185154 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0028185154

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