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摘要

涡旋声束携带的轨道角动量(orbital angular momentum, OAM)可以传递给物体, 在微粒操控等方面有较好的应用前景. 除此之外, 涡旋声束在声学通信方面同样具有巨大的潜力. 由于具有不同OAM模式值的涡旋声束相互正交, 因此, 将OAM模式引入传统声学通信领域, 为未来实现高速、大容量及高频谱效率的水下声通信技术提供了潜在的解决方案. 本文对OAM声束的研究进展进行了综述, 主要介绍了涡旋声束的产生和检测方案、传输特性, 及其在声通信方面的典型研究案例. 最后, 对OAM声束的未来发展趋势及其前景进行了分析与展望.

关键词:

Abstract

The orbital angular momentum (OAM) carried by acoustic vortex beam can be transmitted to objects, which has a good application prospect in particle manipulation. In addition, the acoustic vortex beam also has great potentials in acoustic communication. The acoustic vortex beams with different OAM modes are orthogonal to each other, so the OAM mode can be introduced into the traditional acoustic communication, which provides a potential solution for realizing the high-speed, large-capacity and high-spectral efficiency of underwater acoustic communication technology in future. In this paper, we summarize the research progress of acoustic vortex beam, in which we mainly introduce the generation and detection scheme of acoustic vortex beam, its transmission characteristics, and its typical research cases in communication. Finally, the future development trend and the outlook of acoustic vortex beam are also analyzed and prospected.

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作者及机构信息

通信作者:郭忠义,guozhongyi@hfut.edu.cn

基金项目:国家自然科学基金(批准号: 61775050)和中央高校基本研究经费(批准号: PA2019GDZC0098)资助的课题

Authors and contacts

Corresponding author:Guo Zhong-Yi,guozhongyi@hfut.edu.cn

Funds:Project supported by the National Natural Science Foundation of China (Grant No. 61775050) and the Fundamental Research Funds for the Central Universities of China (Grant No. PA2019GDZC0098)

文章全文: translate this paragraph

参考文献

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施引文献

下载: 全尺寸图片幻灯片

	有源方法		无源方法
	螺旋相控源	螺旋型源	相位板	螺旋声栅	超表面
成本	高	高	低	低	低
速度	正常	正常	正常	正常	正常
可靠性	高	高	高	高	高
复杂性	高	高	低	低	低
OAM模式	复合	复合	单一	复合	复合
工作频段	宽	宽	窄	宽	窄

下载: 导出CSV

	内积算法	降低OAM模式的阶数	机器学习	螺旋波导	抛物线型解码超表面	圆孔阵列/环形孔径
成本	高	低	低	低	低	低
速度	正常	正常	正常	正常	正常	正常
可靠性	高	高	高	高	高	高
复杂型	复杂	复杂	简单	简单	简单	简单
OAM模式	复合	复合	复合	仅能分辨符号	复合	单一
工作频段	宽	窄	宽	窄	窄	宽

下载: 导出CSV

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