Optimizing large systems in array acoustics and active control

优化阵列声学和主动控制方面的大型系统

• 批准号: 138182-2011
• 负责人: Berry, Alain
• 金额: $ 3.57万
• 依托单位: Université de Sherbrooke
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=545497
• 关键词: Optimizing; large; systems; array; acoustics

A large number of problems in acoustics and vibration of continuous media involve a set of sources (or actuators, emitters) and a set of receivers (or sensors) distributed in the solid or fluid continuum. This is the case of active control of sound and vibration, acoustic imaging and spatial sound field reproduction. All these problems involve, at some point, inverting the matrix H of transfer functions between physical or assumed sources, and receivers. Advances in multi-channel acquisition and processing power have triggered applications involving up to hundreds of sources or receivers. In 2009, I was the principal investigator of a succesfull $4.2M application to the CFI New Initiatives Fund. This infrastructure grant will permit the acquisition, among others, of a state-of-the-art 32 I/O real-time controller platform, a 96-loudspeaker Wave Field Synthesis (WFS) system and a 196-microphone conformal antenna for acoustic imaging. These facilities will bring our infrastructure in array acoustics and active control to world-class level, and trigger exciting new research in these fields.

连续介质的声学和振动中的大量问题涉及分布在固体或流体连续体中的一组源（或致动器、发射器）和一组接收器（或传感器）。这是声音和振动的主动控制、声学成像和空间声场再现的情况。所有这些问题都涉及到在某一点上对物理或假设源与接收器之间的传递函数矩阵H求逆。多通道采集和处理能力的进步已经触发了涉及多达数百个源或接收器的应用。2009年，我是CFI新举措基金420万美元成功申请的首席研究员。这笔基础设施拨款将允许购买最先进的32 I/O实时控制器平台，96扬声器波场合成（WFS）系统和196麦克风共形天线用于声学成像。这些设施将使我们在阵列声学和主动控制方面的基础设施达到世界一流水平，并引发这些领域令人兴奋的新研究。