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。
A least Pth optimization method is developed for estimation of structural dynamic parameters from estimated response spectrum power density function.
本文提出用最小p乘优化方法从响应功率谱估算结构的动力参数。
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。
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。
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