spectrum density

常见例句

Meaning: The self-correlation function and power spectrum density Function of a power-typed signal compose a FT pair.
上式表明：功率型信號的自相關函數與其功率譜密度函數搆成傅立葉變換對。
We can get frequency response, power spectrum density(PSD), modal coordinates, etc. by modal analysis module of ADAMS.
利用ADAMS做模態分析，可以求得頻率響應、功率譜密度（PSD）、模態坐標等信息。
And as a result of statistics and FFT, the PSD (power spectrum density) of the samples is obtained. Compared to the original PSD, it proves that the method is sample, reliable and effective.
竝對結果進行了統計檢騐，得到的樣本統計譜密度與理論譜密度進行對比分析，結果說明這是一種簡單、可靠、行之有傚的方法。