采样

Simulation results show that, for the fixed sampling frequency, the error rises with the frequency increasing of periodic signal, and decreases with the attenuation time constant increasing of non-periodic signal. The sampling frequency determines the upper limit of appropriate frequency band directly. The research provides the basis for the selection of cutoff frequency in filter design.

仿真结果表明，在采样频率确定时，对于周期信号，计算误差随频率的增加而增大，而对于非周期信号，计算误差随衰减时间常数的增大而减小，采样频率大小决定了插值法用于分布参数模型的适用频带上限，该研究为滤波器设计中截止频率的选择提供了依据。

A measurement system control and data processing software is composed with 4 modules, namely, parameters setup module, sampling control module, data processing module, and 3D display module which can illustrate the 3D profile of the inside surface of barrels with normal axonometric projection and cabinet drawing.

该软件分为参数设置模块、采样控制模块、数据处理模块和三维表面显示模块，可实现采样过程的动态显示，并能以正等测和斜二等测两种投影方式向用户展示被测表面的三维形貌。

The premise of plane background in the global motion estimation and compensation is proved from the theoretical and instance analysis.

一种是在给定采样帧率的条件下，以运动分析为基础，利用运动场总体能量和运动补偿后的残差能量来综合度量运动变化信息，建立了基于运动变化信息熵最大化的视频序列时域亚采样技术。

Results showed that Golden chinese banyan, Osmanthus, Macaranga, Scandent schefflera, Lalang grass, Taiwan mulberry, Coral bean tree, Common camptotheca, Guava and Malabar chestnut have significantly higher deposition of dust storm particulate than normal time.

在2007年4月4日沙尘暴袭台后，於台北市台大校园及长兴街一带对26种受污染植物进行采样，并藉由上光源暗视野显微镜进行沙尘暴微粒之镜检鉴定，结果显示黄金榕、桂花、血桐、鹅掌藤、茅草、桑树、珊瑚刺桐、喜树、番石榴及马拉巴栗之叶表滞尘量显著高於平时对照组者，相反地梅花和春不老则於平时之滞尘量显著高於受沙尘暴污染者，显示采样时应考虑背景值高低之问题。

Channel status blocks describe the audio format, sampling rate, bit depth etc.

通道状态区块描述音频的格式，采样率，采样深度等。

It can downsample by a factor of 12 and upsample by the same factor.

它可以通过12个因子中的一个来降低采样率，也可以用同样的因子增加采样率。

CD-Audio has a sample rate of 441000. 44100 * 0.094 = 4145 samples.

CD音频的采样率为44100Hz.44100 * 0.094 = 4145 采样数。

There is lower trace element concentration in middle sample stations than closing to continents in Chukchi Sea.

北极楚科奇海微量元素在中间采样站位值较低，而离陆较近的周围采样站位有着较高的含量，受陆源物质输入影响明显。

There is lower trace element concentration in middle sample stations than closing to continent\'s in Chukchi Sea.

北极楚科奇海微量元素在中间采样站位值较低，而离陆较近的四周采样站位有着较高的含量，受陆源物质输进影响明显。

The results indicate that the vertical component of wind velocity variance remains unchanged but the hori- zontal component increases as the sampling length increases.

结果表明：在进行湍流统计特征量计算过程中，采样长度增加时，垂直分量风速方差无明显变化，水平分量风速方差增大；随着风速的减小以及稳定度参数 z/L的增加，采样长度对计算结果的影响变得更为突出。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。