power spectral density [物] 功率谱密度 ; 谱密度
Power spectral estimation 功率谱估计
power spectral density function [物] 功率谱密度函数
power spectral subtraction 功率谱减法
power spectral map 功率谱图
instantaneous power spectral density 瞬间功率谱密度
auto-power spectral density 自功率谱密度
According to power spectral index of Inner Mongolia(β= 1.99<2), the process of urbanization has the characteristic of temporal fractal and generalized 1/ f noise.
从内蒙古城市化功率谱指数(β= 1.99<2)可知,内蒙古城市化过程具有时间分形特征,表现出广义的1/f噪声,从而暗示了内蒙古城市化演化发展的自组织临界性(SOC)。
参考来源 - 基于自组织理论的内蒙古城市化发展及其空间组织研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The concept of "equivalent noisy power spectral density" is introduced in this paper.
文中提出等效噪声功率谱密度的概念。
Objective: To study the effects of heart rate on power spectral of electrocardiogram.
目的：研究心率对心电频谱的影响。
Then they were imported to MATLAB and calculated to obtain the power spectral density(PSD).
将数字声波信号导入MATLAB软件进行处理，得到其功率谱密度图。
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