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Comparison of balanced direct search and iterative angular spectrum approaches for designing acoustic holography structure

机译：用于设计声学全息结构的平衡直接搜索和迭代角频谱方法的比较

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摘要

There are many pure phase methods for designing acoustical holography structures in the known literature. Different methods may have different characteristics and lead to different results, but few researchers put these methods together for comparison. So we have no idea which method should be taken when dealing with a specific optimization case. This paper investigated the characteristics of three different PM methods, one is the direct search method taking suitable objective function and another two are the conventional IASA methods but with different restricts in image plane, one called ISREL relaxes the whole background pressure constraints and one called ISRES restricts the whole background pressure to zero. We find that DS is a balanced method in terms of various metrics evaluating target pattern and background noise. Finally, the ability of particle manipulation of DS was verified experimentally by designing a holography structure projecting a circle with a non-uniform phase gradient. In a word, it provides a specific comparison between the two mainstream methods DS and IASA by two optimization cases. On one hand, it gives us a clear view of the characteristics of these methods in designing acoustic holography; On the other hand, we know that DS may be a preferred algoritm for most optimization cases owing to its balanced characteristic regardless of time costs. (C) 2020 Elsevier Ltd. All rights reserved.
机译：有许多用于在已知文献中设计声学全息结构的纯相方法。不同的方法可能具有不同的特征并导致不同的结果，但是很少有研究人员将这些方法放在一起进行比较。因此，我们不知道处理特定优化案例时应采取哪种方法。本文研究了三种不同PM方法的特点，一个是采用合适的目标函数的直接搜索方法，另外两个是传统的IASA方法，但在图像平面中有不同的限制，一个被称为isrel放松整个背景压力限制和一个被称为ISRES的isres将整个背景压力限制为零。我们发现DS是评估目标模式和背景噪声的各种度量的平衡方法。最后，通过设计具有非均匀相位梯度的全息结构来实验验证DS的粒子操纵能力。总之，它在两个优化案例中提供了两个主流方法DS和IASA之间的具体比较。一方面，它可以清楚地了解这些方法在设计声学全息术方面的特征;另一方面，我们知道DS可以是最优化的情况的优选算法，因为无论其平衡的特性如何，无论时间成本如何。 （c）2020 elestvier有限公司保留所有权利。

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  • 来源
    《Applied Acoustics》 |2021年第4期|107848.1-107848.9|共9页
  • 作者

    Li Jianqing; Lv Zengyao; Hou Zewei; Pei Yongmao;

  • 作者单位

    Peking Univ Coll Engn State Key Lab Turbulence & Complex Syst Beijing 100871 Peoples R China;

    Peking Univ Coll Engn State Key Lab Turbulence & Complex Syst Beijing 100871 Peoples R China;

    Peking Univ Coll Engn State Key Lab Turbulence & Complex Syst Beijing 100871 Peoples R China;

    Peking Univ Coll Engn State Key Lab Turbulence & Complex Syst Beijing 100871 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Holography structure; Comparison; Balanced; Restricted; Relaxed;

    机译：全息结构;比较;平衡;限制;放松;

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