查询词典 noise

Base on the principle of the superposition of waves, active noise control and active vibration control is achieved by adaptively tuning a secondary source which produces an anti-noise of equal amplitude and opposite phase with primary source.

主动噪音控制及主动振动控制籍由适应性地调适第二控制点，使第二控制点产生与主要声源或振源大小相等、相位相反的干涉波，而得以实现噪音消除及振动抑制之目的。

Base on the principle of the superposition of waves, active noise control and active vibration control is achieved by adaptively tuning a secondary source which produces an anti-noise of equal amplitude and opposite phase with primary source. This thesis includes two parts of study which are shown as below.

主动噪音控制及主动振动控制籍由适应性地调适第二控制点，使第二控制点产生与主要声源或振源大小相等、相位相反的干涉波，而得以实现噪音消除及振动抑制之目的。

The detailed coefficients of DWT contain signal and noise. Instead of the soft-thresholding method, SVD is applied to decompose the signal features and noise into different orthogonal subspaces. With the reconstruction of the singular vectors in subspace, the signal features are extracted effectively.

该方法通过对每层小波分解细节系数进行奇异值分解，将其中的信号特征成分和噪声分解到不同的正交子空间中，在子空间中选取集成信号特征成分的奇异值矢量进行重构，从而提取出淹没在细节系数中的有用信号成分，最后进行小波重建，得到降噪信号。

Using 75 varied low frequency noise samples with adjusted-loudness as sound stimuli, we investigate sound quality for low frequency noise with paired comparison method.

以等响处理后的 75 个稳态低频噪声样本为例，采用成对比较法，设计并完成了有 24 位评价者参与的大规模实验室主观评价实验。

In this paper, the noise source of image is analyzed according to the noise theory.

对电厂的安全运行和燃烧诊断具有重要的意义。

Except for the great success of the conventional stochastic signal processing technology, there are some obvious deficiencies, especially when it's used in the complex nonlinear systems with addictive colored noise, or the parasitical noise, whose characteristics or parameters cannot be measured.

统计信号处理技术取得了很大的成功的后面，但是它本身又存在着明显的不足，尤其是处带有加性有色噪生的非线性系统、系统的寄生噪声的参数或者分布特征等无法取得的情况下，统计方法往往显得无能为力。

The difference offers theoretic gist to the implement of noise detection in the complex ocean noise field.The purpose of the thesis is to construct perfect model of vector sound field.

构建完整的矢量声场的模型是本文试图完成的工作，通过建立一些相应的概念，来找到对矢量场的准确描述方法。

Random differential equations of minor noise were established by means of perturbation theory of minor noise.

通过小噪声摄动理论，建立了小噪声随机微分方程。

In the work of the traditional high-speed porterage, usually unavoidable noise; but, not the drive of the contact type absorbs mutually by the magnetic, scolding the principle mutually, will not generate in the operation noise, let the quality of the work place promoted consumedly.

在传统高速搬运作业中，往往无法避免噪音；但非接触式传动藉由磁性相吸、相斥原理，在运转中不会产生噪音，让工作场所作业品质大幅提升。

It indicated that photovoltaic noise barrier by way of link point of flourish development in photovoltaic and huge potential of noise barrier, would open up a vast range of prospects.

指出作为蓬勃发展的光伏发电与潜力巨大的声屏障两者结合点的光伏声屏障，具有十分广阔的发展前景。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。