查询词典 noise-power-ratio

The cause of main steam valve noise is determined through analysis of noise creating mechanism.

通过对噪声产生机理的分析，确定了主蒸汽阀噪声的生成原因，介绍了几种降噪措施及其效果，对电厂管道设计和阀门选型具有借鉴意义。

In this paper, motion model of star spot which is combined with the effect of CCD noise has been established. The centroid accuracy of the star spot affected by sub-pixels arithmetic and CCD noise were analyzed at different exposure time with CCD47-20 chip, and the optimum exposure time was calculated.

建立星敏感器星点像移模型和CCD噪声影响模型，分析了星点质心定位精度与曝光时间的关系，并以CCD47-20为例，对星敏感器的曝光时间进行了优化。

In this model, the noise field in sound shadow region is deduced by applying Huygens-Fresnel principle. It provides a new ideal for deducing the diffraction sound of complicated noise source.

模型中对声影区的声场分布采用惠更斯-菲涅耳原理进行推导计算，给出的理论计算公式可为推导计算其它复杂声源的衍射声提供借鉴。

Study of long-term residents in the vicinity of the airport, flight movements during sleep prone to the effects of noise, noise, if more than 35 db, the rapid rise in blood pressure will lead to long-term health risks associated with, the higher the risk of suffering from high blood pressure.

研究表示，长期居住在机场附近的居民，睡眠时易受航班升降噪音的影响，噪音若超过35分贝，会令血压急速上升，长期会危害健康，患高血压的风险较高。

Because a noise signal on one wire will appear identically on the other wire, this noise be easily detected and filtered at the receiver.

而一条线的杂讯将同样地出现在另一条线上，因此杂讯容易被接收器侦察并过滤。

You can create sine waves, square waves, triangular waveforms, saw tooth waveforms, impulses, white noise and pink noise.

你能够创造正弦波，平方的波，齿波形，噪音。

This method can not only eliminate Gaussian and salt-and-pepper noise separately but also eliminate the mixed noise parallely.

实验结果表明，该方法对内容复杂的图像处理效果也比较好。

According to characteristics of salt-and-pepper noise, one pixel to be processed is estimated at first to be a signal pixel or a noise pixel.

首先根据椒盐噪声的特点，判断图像像素是信号像素还是噪声像素。

Because the proposed method integrates the advantages of the median-filter and PDE methods, it can restrain the salt-and-pepper noise for the noise density range from 10% to 95%, and at the same time effectively repair the edge and detail information in videos. Moreover proposes some speed-up design and optimization strategy which promotes the efficiency significantly.

研究高强度椒盐噪声的抑制算法，提出了逐次修复和邻域修复的概念，结合了中值滤波和PDE两类算法的优势，能够在抑制高强度椒盐噪声的同时，较好的修复图像的细节和边界信息。

Three new median filters are proposed in this paper, such as the effective and non-iterative removal based on the threshold for salt-and-pepper noise from images, non-iterative removal based on the directional information for salt-and-pepper noise from images, an improved anisotropic diffusion based on the median filter.

本文在中值滤波的基础上，提出了三种新的非线性滤波算法，它们是：基于阈值的图像椒盐噪声的非迭代滤除；基于方向信息的图像椒盐噪声的非迭代滤除；改进的基于中值滤波的反扩散。

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。