| 摘要: |
| 通过给经典遗传算法(GA)的变异算子赋予新的功能,实现了任意稀布率的平面阵或线阵方向图的优化.研究了遗传算法参数和优化结果之间的关系,仿真结果表明,同时考虑峰值副瓣电平和波束宽度才能获得更满意的稀布结果.归纳得出一个平面稀布阵峰值副瓣电平的估计公式,并和随机稀布阵的公式进行了比较,数值结果表明该公式有一定的工程意义. |
| 关键词: 平面稀布阵 遗传算法 任意稀布率 峰值副瓣电平控制 波束宽度 |
| DOI：10.3969/j.issn.1001-893X. |
| 投稿时间：2006-11-07修订日期：2007-01-10 |
| 基金项目: |
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| Using Genetic Algorithm to Optimize Thinned Planar Arrays with Arbitrary Thinned Factor |
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| Abstract: |
| By making the random mutation operator in the classical genetic algorithm(GA) play an additional role,the beam pattern produced by thinned planar or linear arrays with arbitrary thinned factor is optimized.Relationship between optimized results and GA's parameters is explored in detail.Simulation results show that in order to get satisfied thinned arrays the peak sidelobe level(PSL) and the beamwidth must be considered together.A formula is concluded for PSL estimation of thinned planar arrays,and the formula is also compared with the one deduced for random sparse arrays.Numeral results indicate that the formula is of engineering significance. |
| Key words: thinned planar arrays,genetic algorithm(GA),arbitrary thinned factor,peak sidelobe level(PSL)control,beamwidth |
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