noise standard

The analytical results for g factor map, noise standard deviation and artifact power of a series of 3D images show that the PF_GRAPPA method has obvious advantages over 2D GRAPPA.

对三维图像的g因子图、噪声标准差和伪影强度等定量分析的结果表明，PF GRAPPA算法优势明显，可适用于厚体和薄体成像。

a wr28 cryogenic thermal noise standard was constructed at nim in dec 2008.

2008年中国计量科学研究院研制了一台WR28低温标准热噪声源。

the influence of the new passby noise standard on automobile correlated industries

汽车通过噪声法规的颁布对汽车相关产业的影响

to avoid sensor noise, standard deviation of measurement data is calculated to detect start point, end point and turn point of one stroke.

为了减少传感器噪声的影响，使用标准偏差来进行笔画的起始点、终止点和转折点等特征点的判断。

This formula has been applied to determine the available noise temperature of the thermal noise standard source.

该计算式已被用于确定热噪声标准源的资用噪声温度。

Based on the two dependencies, the paper proposes a new threshold function and researches the relation between the threshold and image noise standard deviation.

根据这两种小波系数关系，提出了一种阈值函数，并研究了阈值和图像噪声的关系。

The sound environment present situation is good, the basic performance satisfies the ambient noise standard request.

声环境现状良好, 基本能满足环境噪声标准要求.