查询词典 spectral density

Based on the model of stiffened plates with concentrated added mass, a study of the stochastic vibration was carried out, and system's mean value, mean square value, cross-correlation function, cross-spectral density function were calculated.

从带有附加集中质量加肋板的力学简化模型出发，推导给出了该模型的随机功率谱密度，并分析了系统随机振动响应的其他统计数字特征：均值、均方值、互相关函数和协功率谱密度。

It obtained analytic expression or arithmetic solution of the mean value, the mean square value, the related function and the spectral density function of heat conduction system of 0-D, 1-D, 2-D and 3-D, by applying stochastically theory of linear system and the results of the first part.

该部分利用线性系统的随机理论和第一部分的成果，获得了0维、1维、2维和3维导热系统均值、均方值、相关函数、谱密度函数的解析表达式或数值解。

Through simulation, the size of the filter template affecting on filtering imaging is investigated, the filtering effects of second mean filtering method and vector filtering method at the same size of filter template is comparised, the curve distribution of power spectral density of second mean filtering method and vector filtering method is analyzed.

仿真实验研究了滤波模板的大小对滤波效果的影响，比较了在同样模板的选取下向量滤波方法与二次均值滤波法的滤波效果，分析了向量滤波方法与二次均值滤波法的功率谱密度分布。

A novel method was proposed based on the total pressure of pitot tube and power spectral density.

通过分析皮托管动压信号的方式，提出了一种基于功率谱密度分布的调节阀扰动信号分析新方法。

Numerical method of the power spectral density.

功率谱密度的数值计算方法。

This is a wavelet of noisy signal filtering procedures, procedures also include the power spectral density analysis.

这是一个用小波对含噪信号进行滤波处理的程序，程序中还包括了功率谱密度分析等。

The distortion of the spectral density function caused by using class C amplifieation in pre-amplifier are analysed.

此外，本文还就在前置放大器中使用丙类放大器对谱分析结果所造成的失真作了分析。

A random signal of known statistical properties of amplitude, distribution, and spectral density.

振幅、分布及谱密度等的已知统计特性的随机信号。

The amplitude-frequency response of a filter was designed according to the power spectral density of platform vibration of SILEX (Semiconductor Inter-satellite Laser Experiment) and Landsat, and then the signals of platform vibration were generated by filtering white Gaussian noise using the filter.

根据SILEX和Landsat平台振动功率谱设计滤波器的幅频响应，通过滤波器对高斯白噪声进行滤波来模拟生成平台振动信号。

Effects of the correlation time of noises on the spectral density also are discussed.

进一步又讨论了噪声的关联时间对原子激光谱密度的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。