Title :
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
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);
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2014.033014.140198
