Sparse Linear Array Synthesis With Multiple Constraints Using Differential Evolution With Strategy Adaptation

作者：Goudos Sotirios K^*; Siakavara Katherine; Samaras Theodoros; Vafiadis Elias E; Sahalos John N

来源：IEEE Antennas and Wireless Propagation Letters, 2011, 10: 670-673.

DOI：10.1109/LAWP.2011.2161256

• Differential evolution (DE)
• genetic algorithms (GAs)
• linear array design
• sidelobe suppression
• sparse array synthesis
• unequally spaced array

This letter addresses the problem of designing sparse linear arrays with multiple constraints. The constraints could include the minimum and maximum distance between two adjacent elements, the total array length, the sidelobe level suppression in specified angular intervals, the main-lobe beamwidth, and the pre-defined number of elements. Our design method is based on differential evolution (DE) with strategy adaptation. We apply a DE algorithm (SaDE) that uses previous experience in both trial vector generation strategies and control parameter tuning. Design cases found in the literature are compared to those found by SaDE and other DE algorithms. The results show that fewer objective-function evaluations are required than those reported in the literature to obtain better designs. SaDE also outperforms the other DE algorithms in terms of statistical results.

• 出版日期2011