An analysis of CMA for array signal processing

Author

Liu, Dan ; Tong, Lang

Author_Institution

Dept. of Electr. & Syst. Eng., Connecticut Univ., Storrs, CT, USA

fYear

1998

fDate

16-21 Aug 1998

Firstpage

181

Abstract

Constant modulus (CM) cost function is analyzed for array signal processing, which includes arbitrary source types. It is shown that CM receivers have the signal space property except two special cases. Local minima of CM cost function are completely characterized for the noiseless case. In the presence of measurement noise, the existence of CM local minima in the neighborhood of Wiener receivers is established, and their mean squared error (MSE) performance, output power, estimation bias and residue interference are evaluated. Numerical examples are obtained to demonstrate the effects of signal statistics on the CM local minima

Keywords

array signal processing; interference (signal); mean square error methods; receivers; CM local minima; CM receivers; CMA; Wiener receivers; arbitrary source types; array signal processing; constant modulus cost function; estimation bias; mean squared error performance; measurement noise; noiseless case; output power; residue interference; signal space property; signal statistics; Array signal processing; Blind equalizers; Cost function; Intersymbol interference; Noise measurement; Power generation; Power measurement; Signal analysis; Signal processing algorithms; Statistics;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory, 1998. Proceedings. 1998 IEEE International Symposium on

Conference_Location

Cambridge, MA

Print_ISBN

0-7803-5000-6

Type

conf

DOI

10.1109/ISIT.1998.708778

Filename

708778