Title :
Rejection of narrow-band interference in DS spread spectrum systems employing nonlinear interpolation filters
Author :
Wang, Kun-Jie ; Tang, Zuqiang ; Yao, Yan
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
The narrow-band interference (NBI) rejection capability of direct sequence spread spectrum (DS-SS) systems can be further enhanced by employing interference rejection filters. In this paper, the performance of nonlinear interpolation filters is analyzed in the presence of narrow-band interference. Closed-form analytical expression for the signal-to-noise ratio improvement factor is derived. By comparison, we conclude that nonlinear interpolation filters outperform both nonlinear prediction filters and linear filters
Keywords :
interference suppression; interpolation; nonlinear filters; pseudonoise codes; spread spectrum communication; DS spread spectrum systems; DS-SS; closed-form analytical expression; direct sequence spread spectrum; interference rejection capability; narrow-band interference; nonlinear interpolation filters; performance; signal-to-noise ratio; Interference; Interpolation; Microwave filters; Narrowband; Nonlinear filters; Performance analysis; Predictive models; Signal analysis; Signal to noise ratio; Spread spectrum communication;
Conference_Titel :
Communication Technology Proceedings, 1998. ICCT '98. 1998 International Conference on
Conference_Location :
Beijing
Print_ISBN :
7-80090-827-5
DOI :
10.1109/ICCT.1998.740953
