An evolutive algorithm for blind adaptive beamforming in GPS applications

Author

Junqueira, Cynthia ; Suyama, Ricardo ; Von Zuben, Fernando J. ; Romano, Joao Marcos Travassos

Author_Institution

CTA-IAE, Aerosp. Tech. Center

fYear

2004

fDate

Sept. 29 2004-Oct. 1 2004

Firstpage

715

Lastpage

724

Abstract

In this work we propose an alternative approach to the problem of digital beamforming. We employ an evolutive algorithm, named opt-aiNet, to optimize the directed-decision (DD) criterion, a well-known equalization criterion, in order to determine the optimal coefficients of the antenna array. The approach is applied to a GPS application scenario, where the multimodal search capability of the opt-aiNet algorithm is used to simultaneously find the coefficient vectors that capture the signals coming from all the visible satellites

Keywords

Global Positioning System; adaptive antenna arrays; array signal processing; optimisation; GPS application; adaptive antenna array; blind adaptive beamforming; digital beamforming; directed-decision criterion; equalization criterion; evolutive algorithm; opt-aiNet algorithm; optimization; Adaptive arrays; Aerospace industry; Antenna arrays; Antenna radiation patterns; Application software; Array signal processing; Global Positioning System; Quality of service; Satellites; Signal processing algorithms;

fLanguage

English

Publisher

ieee

Conference_Titel

Machine Learning for Signal Processing, 2004. Proceedings of the 2004 14th IEEE Signal Processing Society Workshop

Conference_Location

Sao Luis

ISSN

1551-2541

Print_ISBN

0-7803-8608-4

Type

conf

DOI

10.1109/MLSP.2004.1423037

Filename

1423037