noise cancellation

a novel class of nonlinear adaptive active noise cancellation filter-sigmoid-based volterra, adaptive active noise cancellation filter is introduced. the normalized data and instantaneous error lms algorithm is modified to update the coefficients of this sigmoid-based volterra filter.

该文介绍了一种新颖的非线性自适应有源噪声对消器&基于sigmoid函数的Volterra自适应有源噪声对消器，并采用输入信号和瞬时误差归一化的LMS自适应算法调整其系数。

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Optimal Design of Controllers for Active Noise Cancellation in Three Dimensional Space

空间有源消声控制器的优化设计

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a new type of active noise cancellation earmuffs. the research of active noise cancellation in headphone with feedback mode

基于飞行保护头盔的主动消声研究反馈式主动消噪耳机的研制

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Method Continuous wave radar techniques and signal processing techniques including zero intermediate frequency, frequency domain accumulation and adaptive noise cancellation were used in the system.

方法将连续波雷达技术和生物医学信号处理技术相结合，采用了零中频、频域积累及自适应对消技术。

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Test and Study of the Phase Characteristics in the Electro-acoustic Translation of Active Noise Cancellation Earmuff

有源消声耳罩电声转换相位特性的测试研究

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Compared of the wavelet threshold, denoising modulus maxima denoising and translation invariant in effecting the denoising. We have found that the wavelet threshold denoising preserved eggs percussion vibration signal noise cancellation. 4.

比较了小波阈值去噪、模极大值去噪和平移不变三种常用的小波去噪方法的去噪效果，发现小波阈值去噪方法对皮蛋敲击振动信号的消噪效果最佳。

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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.

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The AirPods Pro comes with advanced noise cancellation technology, flexible ear tips to better fit in the user's ears and a transparency mode, which lets customers listen to music while still hearing the surrounding environment, Apple said.

苹果公司说AirPods Pro采用了高级的降噪技术，有弹性的入耳部位更贴合用户的耳朵，还有透明模式，让消费者听音乐时也能听见周围的声音。

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To eliminate the ECG signals noises mentioned above, this paper adopts LMS adaptive algorithm and wavelet transform theory to design three kinds of digital adaptive filters& adaptive noise cancellation filter, wavelet transform filter and adaptive signal dividing filter to filter the corresponding noises.

为了消除心电信号检测过程中带有的上述三种噪声，采用LMS自适应算法及小波变换理论，有针对性的设计了自适应滤波器、小波变换滤波器和自适应信号分离器等三种数字滤波器来滤除相应干扰。

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A Hybrid Filter Training and Design Method for Adaptive Noise Cancellation

自适应去噪滤波器组合的训练与设计方法

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A study on active noise cancellation earmuff

有源消声耳罩的研究

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Optimum design for controller of compound active noise cancellation earmuff

复合式有源消声耳罩控制器的优化设计

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In many applications of Active Noise-Cancellation Earmuff ( ANCE), communication signal is introduced into the earmuff while the function of active noise cancellation is being realized.

在有源消声耳罩的很多应用场所，耳罩中引入了通信信号，在提高有源消声量的同时，还要保证通信信号的清晰。

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This paper introduces a modified LMS algorithm and its application in adaptive noise cancellation.

介绍了一种改进的LMS自 适应滤波算法及其在自适应噪声对消中的应用.

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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。

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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）。

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The Research of Active Noise Cancellation in Headphone with feedback mode

反馈式主动消噪耳机的研制

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The simulation results show that fuzzy inference system can be successfully applied to noise cancellation.

仿真结果表明模糊推理系统可以应用于噪声消除.

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adaptive active noise cancellation based on the adaptive control theory has become one of important researches in the field of active noise control and has gain a lot of achievement.

基于自适应控制理论的噪声主动控制技术已经成为噪声控制领域的重要研究内容之一，并取得了丰硕的成果。

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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。

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Key building blocks for realizing the noise cancellation, including the delay variable PFD and compensation current source, are specially designed. Both the behavior level and circuit level simulation results are presented.

特别设计了可变延迟的鉴频鉴相器和补偿电流源，并给出了行为级和电路级的仿真结果。

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Two-Stage Adaptive Noise Cancellation Algorithm for Ultrasonic Test of Oil Pipeline

石油管道超声检测信号的两级自适应噪声消除算法

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