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

fYear

1998

fDate

22-24 Oct 1998

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Technology Proceedings, 1998. ICCT '98. 1998 International Conference on

Conference_Location

Beijing

Print_ISBN

7-80090-827-5

Type

conf

DOI

10.1109/ICCT.1998.740953

Filename

740953