Meaning: The self-correlation function and power spectrum density Function of a power-typed signal compose a FT pair.
上式表明：功率型信号的自相关函数与其功率谱密度函数构成傅立叶变换对。
We can get frequency response, power spectrum density (PSD), modal coordinates, etc. by modal analysis module of ADAMS.
利用ADAMS做模态分析，可以求得频率响应、功率谱密度(PSD)、模态坐标等信息。
With its attacking traffic pattern, obvious difference was found between the power spectrum density (PSD) of legitimate and attack traffic samples.
分析发现，合法流量和包含攻击包流量采样在功率谱密度上存在显著差异。
Based on radar clutter distribution, the radar clutter model is analysed for amplitude probability density distribution and power spectrum density distribution.
从雷达杂波的分布特性出发，分析了杂波的解析模型，阐述了雷达杂波幅度的概率密度分布及其功率谱密度分布。
Giving concrete digital-modulated form, the mean power spectrum density of the signals discussed can be obtained in this way. The calculation can be done on computers.
给定具体的数字调角形式，用这种方法可在计算机上计算所给信号的平均功率谱密度。
As a result, some parameters of the key points have been got including the power spectrum density (PSD), the response variance, the gust response factor for load and displacement.
生成了若干关键点的功率谱密度(PSD)和响应的均方值，以及荷载风振系数、位移风振系数。
An analysis of a type of angular contact ball bearing under given input power spectrum density is performed. The result demonstrate that the bearing is safe in any load direction.
以某种角接触球轴承为例，验证了其在给定输入功率谱密度下任意方向加载都安全。
Wind field parameters involved in wind field simulation include mainly turbulent wind power spectrum density and spatial-correlation function, which is measured and applied to wind simulation.
风场模拟涉及的风参数主要包括脉动风谱和空间相关函数，对风洞中的风场参数进行了实测拟合并应用于风场模拟当中。
On the basis of data processing, we analyze the power spectrum density of coordinate component noise at each site and calculate the spectral indexes manifesting the noise property of each component.
在对数据进行清理的基础上，分析了各站坐标分量噪声的功率谱密度，计算了表征各分量的噪声特性的谱指数。
It is shown that the phase noise spectrum density shift periodicity with the length of external cavity and the peak value of power spectrum density varies considerably with the feedback coupling rate.
这表明相位噪声功率谱密度随外腔长度而周期性地漂移，且功率谱密度的峰值随外部反馈耦合率而发生很大的变化。
The track spectra of Qinhuandao-Shenyang(QS) passenger railway line and German railways were compared in terms of power spectrum density(PSD), amplitude of time domain samples and dynamic performance.
从轨道谱的功率谱密度、时间样本幅值及对动力学性能影响的角度，对比了秦沈线轨道谱和德国轨道谱。
The track spectra of Qinhuandao-Shenyang(QS) passenger railway line and German railways were compared in terms of power spectrum density(PSD), amplitude of time domain samples and dynamic performance.
从轨道谱的功率谱密度、时间样本幅值及对动力学性能影响的角度，对比了秦沈线轨道谱和德国轨道谱。
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