An Eigen Domain Interference Rejection Combining Algorithm for Narrowband Interference Suppression

Author

Fengwei Liu ; Hongzhi Zhao ; Youxi Tang

Author_Institution

Nat. Key Lab. of Sci. & Technol. on Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

18

Issue

5

fYear

2014

fDate

May-14

Firstpage

813

Lastpage

816

Abstract

In this letter, we propose an eigen domain interference rejection combining (E-IRC) algorithm to suppress the narrowband interference (NBI). The proposed E-IRC algorithm explores the difference between the time domain autocorrelation matrices of the NBI and the desired signal and implements the IRC in the eigen domain. Compared with the traditional IRC, which rejects the interference in the spatial domain, the proposed E-IRC algorithm exploits the characteristics of the received signal in both the time and spatial domain to suppress the NBI and thus yields better performance. Simulation results are presented to demonstrate the advantage of the proposed algorithm.

Keywords

eigenvalues and eigenfunctions; interference suppression; matrix algebra; time-domain analysis; E-IRC algorithm; NBI suppression; eigen domain interference rejection combining algorithm; narrowband interference suppression; spatial domain; time domain autocorrelation matrices; Correlation; Equations; Interference; Narrowband; Signal to noise ratio; Time-domain analysis; Vectors; Narrowband interference (NBI); eigen domain; interference rejection combining (IRC);

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2014.033014.140198

Filename

6784151