Title :
On narrowband interference suppression using DFB filter in DSSS systems under impulsive channel conditions
Author :
Dobrosavljevi, Z.S. ; Dukic, Miroslav L.
Author_Institution :
Fac. of Electr. Eng., Belgrade Univ., Serbia
Abstract :
In this paper the extension analysis of the recently proposed direct sequence spread spectrum (DSSS) receiver using decision feedback filter (DFB) under narrowband interference (NBI) and impulsive channel conditions is presented. The results, obtained by theoretical analysis and computer simulation in term of the output signal to interference ratio (SIR), show that the impulsive noise does not deteriorate the excellent performance of the DFB receiver in the NBI suppression. The impulsive noise influence on the receiver performance can be adequately expressed through the increase of the total noise power
Keywords :
Gaussian noise; adaptive filters; circuit feedback; filtering theory; interference suppression; pseudonoise codes; radio receivers; radiofrequency interference; spread spectrum communication; telecommunication channels; DFB filter; DFB receiver; DSSS systems; adaptive transversal filter; computer simulation; decision feedback filter; direct sequence spread spectrum; impulsive channel conditions; impulsive noise; narrowband interference suppression; output signal to interference ratio; receiver performance; total noise power; Adaptive filters; Computer simulation; Feedback; Interference suppression; Least squares approximation; Narrowband; Performance analysis; Signal analysis; Spread spectrum communication; Working environment noise;
Conference_Titel :
Spread Spectrum Techniques and Applications, 1994. IEEE ISSSTA '94., IEEE Third International Symposium on
Conference_Location :
Oulu
Print_ISBN :
0-7803-1750-5
DOI :
10.1109/ISSSTA.1994.379529
