The idea behind active noise-cancellation goes back to the 1950s.
消除有源噪声的想法可以追溯到上世纪50年代。
So this thesis studies the active noise control technique in the cabins.
为此本文对舱室空间内的有源噪声控制技术进行了研究。
The effect of active noise barrier was influenced by the locations of the error sensors.
有源控制系统中误差传感器的位置对整个系统的降噪效果有较大的影响。
The optimum design of the controller of compound active noise cancellation earmuff is discussed.
探讨了复合式有源消声耳罩的控制器的优化设计方法。
Hearing protectors - Safety requirements and testing - Part 5: active noise reduction ear-muffs.
听力保护器。安全要求和试验。第5部分：有源降噪耳罩。
A modified algorithm of an Active Noise Control system based on Frequency-Selective Filter (FSFANC) is proposed.
提出了一种改进的选频有源噪声控制(FSFANC)算法。
In the active noise control system we apply neural network control method and derive neural network BP algorithm.
在噪声主动控制系统中采用神经网络控制方法，给出了神经网络BP算法的一种变异算法。
In active noise control (ANC), the FXLMS algorithm has been widely used for its simplicity and low computational load.
自适应噪声主动控制(ANC)中，由于FXLMS算法较为简单、计算量较小，使之得到广泛应用。
Active noise control technology has recently been used to increase the sound transmission loss of double wall structures.
噪声主动控制技术目前已用增加双隔板结构对声音进行衰减。
The full-size, around-ear Bluetooth headphones feature active noise cancellation and double as a headset for making phone calls.
这种大尺寸的包耳式蓝牙耳机能有效地隔绝噪音，并且还能作为打电话用的耳麦。
The active noise control system design has been becoming one of important research contents in the field of the active noise control.
基于自适应控制策略的噪声主动控制系统设计已经成为了噪声主动控制领域的重要研究内容之一。
The acoustic character controlled by the active noise attenuation system in ducts has been analyzed in detail on premise of semi-infinite ducts.
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。
Then the multi-channel self-adaptive active noise control system is designed, and the noise control tests are processed in a close circumstance.
设计多通道自适应有源噪声控制系统，利用滤波-X LMS算法进行封闭环境的噪声控制实验。
He has also made some remarkable achievements in the field of active noise control and nonlinear acoustics, and is still active in research work.
他还积极从事有源噪声控制和非线性声学的研究，并取得了显著成果。
Design principle and implementation of an adaptive active noise controller is proposed in this paper. Hardware structure and software flow are given.
论述了自适应有源噪声控制器的设计原理及实现方法，给出了通用型自适应有源噪声控制器的硬件结构和软件流程。
In the implementation of active noise control, it is very important for accurate secondary paths modeling to keep the stability of the control system.
在有源噪声控制系统实现的过程中，次级通路建模精度对有源控制算法实现、系统的稳定性及降噪量都有重要影响。
Adaptive active noise cancellation based on the adaptive control strategy has become one of important researches in the field of active noise control.
基于自适应控制策略的有源噪声抵消技术已经成为有源噪声控制领域的重要研究内容之一。
So an active noise cancellation (anc) system for helicopter cabin noise based on adaptive internal model control technique, is developed in laboratory.
从而在实验室构造了一套基于自适应内模控制技术的主动消声系统(anc)。
It is important to understand the phase characteristics of electro-acoustic device for the design and effect analysis of active noise cancellation controller.
了解电声器件的相位特性对有源消声控制器的设计及消声效果分析具有重要作用。
An active noise self-tuning model predictive control approach is derived. An on-line learning algorithm is proposed for adjusting the uncertain model parameters.
将预测控制方法应用到有源噪声控制领域，给出了一种参数在线自适应算法，该算法的收敛速度不受次级声路径响应的影响。
Cushioned ear pads block out most external noise, and active noise-canceling technology scrubs out anything else that could get between you and a good audiobook.
耳麦处都配有软垫，能够阻挡外部噪音。先进的防噪音技术能够使您与音乐零距离接触。
On the basis of the above-mentioned simulation analysis, a real-time adaptive active noise control system based on engine rotation speed in a minibus is established.
在上述仿真研究的基础上，在某轻型客车上建立了的基于发动机转速的车内噪声实时自适应主动控制系统。
In this paper the active noise control in cabin is discussed, and some successful examples are presented, such as active noise control in cabin of aircraft and of autocar.
首先讨论了有界空间的有源噪声控制，并给出了一些较为成功的舱室有源噪声控制实例。例如，飞机座舱内和小汽车座舱内有源噪声控制系统和它们的降噪效果。
In the field of adaptive active noise, it is very important for characteristics of secondary paths to keep control system's stability and implement multiple channel algorithms.
在有源噪声控制研究中，次级通路特性对保持系统稳定及快速实现多通道自适应算法具有关键性的作用。
The active noise control technology and adaptive control technology were combined together in the paper, the adaptive and active broadband sound absorption system was designed.
本论文将有源噪声控制技术与自适应控制技术相结合，设计了自适应有源宽带吸声系统。
The research shows that the active noise controls adopted feedforward technology or feedback technology is correspond to adaptive control with measurable noise or immeasurable noise.
研究表明，采用前馈和反馈技术的有源噪声控制分别与控制理论中的干扰可测和干扰不可测的自适应控制相对应。
Active noise control (ANC) is a new high technology integrated with acoustic, adaptive control and digital signal process and it has become the research focus center of noise control.
主动噪声控制是集声学、自适应控制及数字信号处理等技术为一体的高新技术，已成为国内外噪声控制界的研究热点。
In the paper aiming at the problem of low frequency noise transmission through double panel structure, feedback active noise control technique is adopted to control noise transmission.
本文对于低频噪声在双层板结构中传播的问题，探讨采用反馈的主动噪声控制技术以达到控制噪声传播的目的。
In the paper aiming at the problem of low frequency noise transmission through double panel structure, feedback active noise control technique is adopted to control noise transmission.
本文对于低频噪声在双层板结构中传播的问题，探讨采用反馈的主动噪声控制技术以达到控制噪声传播的目的。
应用推荐