声光晶体由行波场驱动，声场频率则由系统的反馈讯号控制。
The frequency of the sound wave is controlled by the feedback signal of the system.
在假设半无限长管道的前提下，详细分析了噪声有源控制系统作用下的管道声场特性。
The acoustic character controlled by the active noise attenuation system in ducts has been analyzed in detail on premise of semi-infinite ducts.
本文把利用输入力有源控制弹性板辐射声场的方法推广到水下情况。
In the paper, the method of active control of radiation sound field from elastic plate by input force is extended to underwater case.
本文对室内声场的有源控制问题进行了探讨。
The problem of active noise control of interior sound field is investigated.
本文研究了有限长充水圆柱置于水中，外声场透射形成的腔内声场自适应有源控制实验研究。
In this paper, an experimental study on adaptive active control of sound trans-mission through a finite length water-filled cylinder in underwater is carried out.
本发明提出的基于规则声阵列和双目视觉的获取运动声场视频的方法，属于噪声分析和控制技术领域。
The invention provides a method for obtaining movement sound field video, which is based on regular sound array and binocular vision and belongs to the technical field of noise analysis and control.
本发明提出的基于规则声阵列和双目视觉的获取运动声场视频的方法，属于噪声分析和控制技术领域。
The invention provides a method for obtaining movement sound field video, which is based on regular sound array and binocular vision and belongs to the technical field of noise analysis and control.
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