A least squares projective constant modulus approach

Author

Parra, I. ; Xu, G. ; Liu, H.

Author_Institution

Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA

Volume

2

fYear

1995

fDate

27-29 Sep 1995

Firstpage

673

Abstract

We present an iterative constant modulus algorithm using the least squares method with projection to blindly separate and estimate multiple co-channel frequency modulated (FM) signals in an antenna array system. The constant modulus property of FM signals is exploited to simultaneously determine the spatial signature and the waveform for each signal. Furthermore, the spatial response of the array and the propagation environment do not need to be known prior to using this algorithm, making it particularly useful in mobile communications. Computer simulations are presented to verify its promising performance

Keywords

array signal processing; cellular radio; cochannel interference; direction-of-arrival estimation; frequency modulation; iterative methods; land mobile radio; least squares approximations; linear antenna arrays; maximum likelihood estimation; radiofrequency interference; CMA; DOA estimation; FM signals; antenna array; computer simulations; iterative constant modulus algorithm; least squares projective constant modulus approach; maximum likelihood estimation; mobile communications; multiple co-channel frequency modulated signals; spatial signature; Antenna arrays; Computer simulation; Interference; Iterative algorithms; Iterative methods; Least squares methods; Maximum likelihood estimation; Mobile antennas; Mobile communication; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 1995. PIMRC'95. Wireless: Merging onto the Information Superhighway., Sixth IEEE International Symposium on

Conference_Location

Toronto, Ont.

Print_ISBN

0-7803-3002-1

Type

conf

DOI

10.1109/PIMRC.1995.480953

Filename

480953