求大神教我如何用labveiw求功率谱密度。如果用matlab直接用一句语句就可以搞定[Yxx,f] = psd(y,NFFT,fs,window,NOVERLAP);，但是用labveiw呢file:///C:UsersAdministratorAppDataRoamingTencentUsers398806093QQWinTempRichOleVN_1~3WC~UEAT)VTKC]6UJJ.png，怎么弄？file:///C:UsersAdministratorAppDataRoamingTencentUsers398806093QQWinTempRichOleVN_1~3WC~UEAT)VTKC]6UJJ.pngfile:///C:UsersAdministratorAppDataRoamingTencentUsers398806093QQWinTempRichOleVN_1~3WC~UEAT)VTKC]6UJJ.png用下面这个控件怎么实现求功率谱密度，会有频率和功率谱输出吗？那相对应的输入是什么？跪求