半导体的噪声成分估计是利用噪声进行器件可靠性筛选的前提条件。
The noise components estimation of semiconductors is the precondition of reliability screening of semiconductor devices using noise measurement.
考虑到输出信号噪声成分的统计特性，得到恒星光子计数观测的计算机模拟方法。
The output signals of the stellar meridian observation using a photon counter are obtained by means of combining the computed signals wiry recording noises.
研究表明，立方法可以有效地抑制信号中的随机噪声成分，从而提高信号的信噪比。
Results of the study show that the method can effectively weaken the noise which infiltrated in the signals, and therefore improve the signal to noise ratio.
研究表明，该方法可以有效地抑制信号中的随机噪声成分，从而提高信号的信噪比。
Results of the study shows that this method can effectively weaken the random noise that infiltrated into mechanical signals, and therefore improve the signal to noise ratio.
近红外光谱不但包含着物质成分信息，而且这些信息完全掩盖在众多复杂背景当中（包括光散射、背景噪声以及背景漂移）。
With NIR spectra, the analytical information is contained in small spectral variations and usually dominated by the features such as light scattering, background noise and baseline drift.
从理论和试验两个方面分析和研究噪声对识别精度的影响，影响识别精度的因素，以及部分模态成分的模态参数不能够被识别的原因。
The influence of noise on identification precision, the effect factor of the computing precision and the reason of missing estimation some modes were analyzed and discussed.
矿用贯流风机噪声的主要成分是旋转噪声和涡流噪声。
The tubular cross flow fan is the main component of rotation noise and worm flow noise.
提出了在强噪声背景下检测瞬时信号的到达时间和频率成分的方法。
Then proposes a method to detect the arrival time of instantaneous signal and the frequency composition under strong noise background.
模态中的一部分表示了信号中的噪声，而剩下的部分模态真实反映了信号的频率成分。
Noise in signal was expressed by the partial mode, and signal frequency component was reflected by other modes.
在许多便携式设备中，其开关电源的噪声和电磁干扰(emi)是亟待解决的问题，比较好的办法是利用扩频技术来减少EMI信号的功率成分。
In many portable instruments, the noise and EMI of its switch power supply must be solved, the preferable method is that EMI power is reduced with spread spectrum frequency technique.
分析了不同车速工况下车内噪声的分布状况及主要频率成分。
Analyze the distribution of internal noise and main frequency ingredient with different speed.
随机脉宽调制技术可以使逆变器输出电压的谐波成分均匀地分布在一个较宽的频率范围内，达到抑制噪声和机械振动的目的。
Random pulse width modulation technique can be used to distribute voltage harmonics over a wide frequency range and to realize the reduction of acoustic noise and vibration.
本文以噪声场中的各向异性成分为出发点，建立了各向异性噪声场模型。
In the thesis, the model of anisotropic noise field is established based on isotropic ingredient in the noise field.
给出了一种提取主运动能量的自适应滤波算法，通过剔除背景和噪声的频率成分，有效地检测出运动目标。
Then an adaptive filter is designed to extract the motion energy and pick out the frequency components of static background and noises, and the moving targets can be detected effectively.
提出了在强噪声背景下检测瞬时信号的到达时间和频率成分的方法。
Then proposes a method to detect the arrival time of instantaneous signal and the frequency composition under strong noise background. Theor...
运用主成分分析方法，经过矩阵变换，提取振动信号的主要信息，从而实现对振动噪声源的分析。
The main vibration signals can be obtained by reducing its dimensions through matrix conversion in the principal component analyzed, and realize the analysis to the vibration noise source.
除了失重之外，大气成分(二氧化碳浓度)、环境噪声等级、压力水平等都不一样。
In addition to weightlessness, the atmospheric composition (CO2 levels), ambient noise levels, stress levels, etc.
冲击伴随噪声是阻塞阀门噪声的重要成分。
The shock associated noise is an important component of choked valve jet.
由于发动机噪声的频率成分比较复杂，如果采用主动降噪技术不能适时采集到源噪声信号，就达不到理想的降噪效果。
Because engine noise takes on complicated frequency characteristics, if original noise signal is not collected, the noise control effect will not be evident.
结果表明，GPS站坐标时间序列中白噪声甚至不是噪声的主要成分。
The result shows that the white noise in the time series of GPS site coordinates does not constitute the main part of noise.
该算法对红外图像处理过程中不同类型的噪声采用不同的方法滤波，有效地滤除了高斯噪声和脉冲噪声，同时增强了目标和背景中的边缘成分。
Different means are used for different kinds of noise respectively. The edges of target and background are enhanced and the elimination of Gauss noise and pulse noise are reduced.
结果表明：发动机噪声主要是加性、低强度的连续频谱，在某几个频率成分上也分布着线状频谱。
The results show that the engine noise is additive weak-intensity continuous spectrum or compound spectrum and for some frequencies it is both continuous and linear.
提出了在强噪声背景下检测瞬时信号的到达时间和频率成分的方法。
Then proposes a method to detect the arrival time of instantaneous signal and the frequency composition under strong noise...
提出了在强噪声背景下检测瞬时信号的到达时间和频率成分的方法。
Then proposes a method to detect the arrival time of instantaneous signal and the frequency compos...
在一般的静息态功能连接分析时，首先需要对数据进行一系列预处理，以去除信号中的不感兴趣的噪声和干扰成分。这些预处理也包括近年来引起广泛关注和讨论的去全脑效应。
A common but controversial pre-processing step in the analysis of resting-state fMRI data is the removal of a global time-course that is the average of all the time-courses within the brain.
在一般的静息态功能连接分析时，首先需要对数据进行一系列预处理，以去除信号中的不感兴趣的噪声和干扰成分。这些预处理也包括近年来引起广泛关注和讨论的去全脑效应。
A common but controversial pre-processing step in the analysis of resting-state fMRI data is the removal of a global time-course that is the average of all the time-courses within the brain.
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