Array Antenna TRM Failure Compensation Using Adaptively Weighted Beam Pattern Mask Based on Genetic Algorithm

Author

Han, Jung-Hoon ; Lim, Sang-Ho ; Myung, Noh-Hoon

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

18

Lastpage

21

Abstract

Digital beamforming array antenna systems are installed outdoors for long periods of time. When a transmitter/receiver module (TRM) error occurs, the beam pattern is distorted. In this case, resynthesizing the optimal beam pattern with all functioning TRMs, without failed TRM, is preferable to TRM repair or replacement. This letter proposes an algorithm for resynthesizing the optimal beam pattern from the distorted beam pattern using an adaptively weighted beam pattern mask based on a genetic algorithm. The proposed algorithm allows improved resynthesis flexibility and accuracy and increased calculation speed. Several beam patterns are also examined utilizing the proposed algorithm. The proposed TRM failure compensation algorithm provides a cost-effective and less time-consuming solution for repairing the digital beamforming antenna systems.

Keywords

antenna arrays; array signal processing; genetic algorithms; TRM failure compensation; TRM repair; TRM replacement; adaptively weighted beam pattern mask; array antenna; digital beamforming; genetic algorithm; optimal beam pattern; transmitter-receiver module; Antenna arrays; Arrays; Chebyshev approximation; Convergence; Genetic algorithms; Transmission line measurements; Adaptive weighting factor; array antenna; beam pattern mask; beam pattern resynthesis; digital beamforming; genetic algorithm (GA); transmitter/receiver module (TRM) failure compensation;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2181475

Filename

6111432