An analysis of constant modulus receivers

Author

Zeng, Hanks H. ; Tong, Lang ; Johnson, C. Richard, Jr.

Author_Institution

AT&T Labs.-Res., Red Bank, NJ, USA

Volume

47

Issue

11

fYear

1999

fDate

11/1/1999 12:00:00 AM

Firstpage

2990

Lastpage

2999

Abstract

This paper investigates connections between (non-blind) Wiener receivers and blind receivers designed by minimizing the constant modulus (CM) cost. Applicable to both T-spaced and fractionally spaced FIR equalization, the main results include (1) a test for the existence of CM local minima near Wiener receivers; (2) an analytical description of CM receivers in the neighborhood of Wiener receivers; (3) mean square error (MSE) bounds for CM receivers. When the channel matrix is invertible, we also show that the CM receiver is approximately colinear with the Wiener receiver and provide a quantitative measure of the size of neighborhoods that contain the CM receivers and the accuracy of the MSE bounds

Keywords

FIR filters; Wiener filters; blind equalisers; mean square error methods; minimisation; receivers; MSE bounds; T-spaced FIR equalization; blind receivers; channel matrix; constant modulus receivers; fractionally spaced FIR equalization; mean square error bounds; nonblind Wiener receivers; Additive noise; Blind equalizers; Costs; Finite impulse response filter; Intersymbol interference; Mean square error methods; Performance analysis; Signal analysis; Signal processing algorithms; Testing;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/78.796434

Filename

796434