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基于声学Luneburg镜头的声源的被动定向检测

Liuxian Zhao1, Lihua Tang2, Yuxin Liu3

  • 1Institute of Sound and Vibration Research, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China.

The Journal of the Acoustical Society of America
|August 1, 2023
PubMed
概括

本研究介绍了一种声学Luneburg镜头 (ALL),用于精确的声源定向检测. 分级的折射率镜头成功识别了单个和双源,分辨率为15°.

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相关概念视频

Active Filters01:25

Active Filters

Active filters are electronic circuits that use operational amplifiers (op-amps), resistors, and capacitors to filter out unwanted frequency components from a signal. A first-order low-pass active filter is designed to pass signals with a frequency lower than a certain cutoff frequency and attenuate frequencies higher than that cutoff frequency. The transfer function for a first-order low-pass active filter is:
857
Passive Filters01:27

Passive Filters

Passive filters are utilized to shape the frequency spectrum of signals across a diverse array of applications. These filters, using only passive elements like resistors (R), inductors (L), and capacitors (C), are capable of selectively allowing or blocking certain frequency ranges without the need for external power sources.
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff...
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