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  • 學位論文

採用瀰因演算法對非對稱之差異場型最佳化

Optimization of Asymmetrical Difference Pattern with Memetic Algorithm

指導教授 : 江簡富

摘要


本論文採用瀰因粒子群演算法進行非對稱之差異場型最佳化,可用於跟踪目標雷達。當線性陣列的場型左右峰值要求不對稱時,場型旁瓣亦成功降低,同時保持預期的峰對峰夾角與旁瓣差異。本論文考慮兩種初始條件: 均勻激發線性陣列和貝里斯激發線性陣列,亦比較粒子群演算法、基因演算法和傳統瀰因演算法的性能。

並列摘要


A memetic particle swarm optimization algorithm (MPSO) is applied to fine-tune the asymmetrical difference pattern of a linear array, which is useful for tracking targets, for example, in radar applications. The side-lobe level of the asymmetrical difference pattern with various peak differences has been successfully reduced, while maintaining the intended squint angle and the side-lobe difference. Conventional PSO, genetic algorithm (GA) and memetic GA (MGA) have also been applied to uniformly-excited and Bayliss linear arrays to compare their performance of optimization.

參考文獻


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