Computer Science ›› 2016, Vol. 43 ›› Issue (7): 268-274.doi: 10.11896/j.issn.1002-137X.2016.07.049

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Unequally Spaced Linear Array Synthesis Using Modified Wind Driven Optimization Algorithm

REN Zuo-lin, TIAN Yu-bo and SUN Fei-yan   

  • Online:2018-12-01 Published:2018-12-01

Abstract: Because of some shortcomings of traditional wind driven optimization (WDO) algorithm for the synthesis of unequally spaced linear antenna arrays,such as the bad convergence accuracy and bad local optimal searching capability,the WDO with wavelet mutation (WDOWM) algorithm was proposed.The modified WDO algorithm with a wavelet mutation operator was used to adopt randomization to rich population diversity.Using the modified algorithm to deal with the synthesis problems of multi-elements unequally spaced linear antenna arrays,second-order multi-factor and multi-level uniform design method was used to determine the algorithm parameter combinations.The simulation results show its convergence accuracy and speed are superior to the traditional WDO algorithm in the pattern synthesis of array antennas with low side-lobe level suppression and null control in specified directions.In addition,the performances of the proposed algorithm are superior to the particle swarm optimization (PSO) algorithm used in the cited references.These results suggest that the WDOWM algorithm has good performance,and it is suitable for the antenna synthesis problems.

Key words: Wind driven optimization algorithm,Wavelet mutation,Uniform design,Antenna array synthesis

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