Power spectral analysis 功率谱分析 ; 谱分析
-d power spectral analysis 二维谱分析
eeg power spectral analysis 脑电功率谱
power spectral analysis method 波谱分析方法
The power spectral density function of earthquake motion is usually used for the random response analysis of engineering structures in the frequency domain.
工程结构的随机地震反应分析，常在频域中用到地震动的功率谱密度函数。
The correlation between the standard classified road power spectral density (PSD) and international roughness index (IRI) was discussed by using regressive analysis.
通过回归分析的方法对标准分级道路功率谱密度与相应国际平整度指数之间的关系进行了研究。
Experimental results show that the radiant power spectrometer has high precision and wide spectral range, and it is of particular value in the fields of medical science, spectrum analysis and so on.
实验结果表明：光谱功率仪精度高、光谱范围宽，在医学研究、光谱分析等领域具有较高的实用价值。
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