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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Design of Wideband Aperiodic Linear Arrays by Constrained Differential Evolution Algorithm
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Design of Wideband Aperiodic Linear Arrays by Constrained Differential Evolution Algorithm

机译：约束差分演化算法设计宽带非周期性线性阵列

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摘要

The element placement plays a crucial role in array performance. Especially, aperiodic placement technique is a very effective approach to remove grating lobes and minimize the sidelobe level (SLL) of an array. In this article, a wideband aperiodic array has been designed by a constrained differential evolution algorithm (DE). As a practical application, multiple optimization constraints, such as the given aperture length, the bandwidth, the number of elements and the minimum interelement spacing, are considered. Hence, minimizing SLL for the wideband aperiodic array can be formulated as a constrained optimization problem. Some synthesis examples are solved by the constrained DE. Numerical results demonstrate that the constrained DE is an effective approach for minimize SLL when all the constraint conditions are satisfied.
机译：元素放置在阵列性能中起着至关重要的作用。尤其是，非周期性放置技术是一种非常有效的方法，可去除光栅波瓣并使阵列的旁瓣电平（SLL）最小化。在本文中，已通过约束差分演化算法（DE）设计了宽带非周期性阵列。在实际应用中，考虑了多个优化约束，例如给定的孔径长度，带宽，元素数量和最小元素间距。因此，可以将宽带非周期性阵列的SLL最小化作为约束优化问题。一些综合实例通过约束DE求解。数值结果表明，当满足所有约束条件时，约束DE是使SLL最小化的有效方法。

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