WSEAS Transactions on Communications
Print ISSN: 1109-2742, E-ISSN: 2224-2864
Volume 13, 2014
Null Steering and Multi-Beams Design by Complex Weight of Antennas Array with the Use of APSO-GA
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Abstract: An efficient method based on the hybrid model with breeding and subpopulations, between genetic algorithm and a modified particle swarm optimizer for the linear antenna arrays pattern synthesis with prescribed nulls in the interference direction and multi-lobe beam forming by the complex weights of each array element is presented. In general, the pattern synthesis technique that generates a desired pattern is a greatly nonlinear optimization problem. The proposed method is based on the hybrid model algorithm and the linear antenna array synthesis was modeled as a multi-objective optimization problem. Multi-objective optimization is concerned with the maximization of a vector of objectives functions in the directions of desired signal that can be subject of a number of constraints. Several numerical results with the imposed single, multiple and broad nulls sectors are provided and compared with published results to illustrate the performance of the proposed method.
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Pages: 99-108
WSEAS Transactions on Communications, ISSN / E-ISSN: 1109-2742 / 2224-2864, Volume 13, 2014, Art. #11