摘要
将简正方式有源控制的概念引入房间声场的控制，除了需要从理论上解决空间声场的有效采集与重建问题以外，更重要的还要从实验上解决控制系统的稳定性与可控性。本文对房间声场的简正方式有源控制进行了概念性的理论分析，从逐步补偿反馈控制系统的潜在不稳定极点入手，得到了比较系统的实验结果，很好地说明和解决了简正方式有源控制系统的一些本质问题。
When the concept of active modal control is applied to sound field control in enclosures, effective sampling and re--construction of the spatial field are the main problems that have to be solved theoretically. It is even more important to realize a stable and controllable system in experiment. In this paper, a conceptual theoretical analysis for active modal control in an enclosed sound field is given. Various methods are used to compensate the potential unstable poles of the applied feedback control system. A series of experimental results are obtained and discussed, by which some of the the natures of active modal control systems are delineated.
出处
《声学学报》
EI
CSCD
北大核心
1996年第4期573-579,共7页
Acta Acustica
基金
中国科学院声学研究所基础研究基金
