Baseband digital image-suppression in low-IF receivers by complex-valued ICA

Author

Yang, Tianyu ; Mikhael, Wasfy B.

Author_Institution

Dept. of Electr. Eng., Central Florida Univ., Orlando, FL, USA

Volume

3

fYear

2003

fDate

27-30 Dec. 2003

Firstpage

1287

Abstract

A digital baseband image rejection technique for low-IF wireless receivers is presented. It is based on complex-valued Independent Component Analysis (ICA), where non-Gaussianity is measured by kurtosis. Computer simulations demonstrate that the proposed technique is able to substantially improve the receiver´s performance, and the resulting receiver is robust to I/Q mismatch levels, thermal noise, and input signal to interference ratios.

Keywords

digital signals; independent component analysis; radio access networks; radio receivers; signal processing; telecommunication computing; thermal noise; complex valued independent component analysis; digital image suppression; inphase-quadrature phase mismatch level; kurtosis; radio receiver; signal to noise ratio; telecommunication computer simulation; thermal noise; wireless receiver; Baseband; Computer simulation; Convergence; Covariance matrix; Digital images; Independent component analysis; Local oscillators; Matrix decomposition; Signal processing; Timing; I/Q mismatch; ICA; Image Rejection;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2003 IEEE 46th Midwest Symposium on

ISSN

1548-3746

Print_ISBN

0-7803-8294-3

Type

conf

DOI

10.1109/MWSCAS.2003.1562530

Filename

1562530