3d plot of spectrum data object

Hi I have acceleration data of a machine acquired at every 1 minute interval for 5 minutes. I have obtained psd plot for each data set using psd.welch. Now I want to plot the all 6 psd plots on a 3-d plot more or less like a waterfall plot so that I can see gradual changes in the spectra with increasing time. Here is my code:

    clear all
    close all
    echo on
    Fs=30000;
    forceZ1 = xlsread('1.xlsx',2,'H6:H5001');
    forceZ10 = xlsread('10.xlsx',2,'H6:H5001');
    forceZ20 = xlsread('20.xlsx',2,'H6:H5001');
    forceZ30 = xlsread('30.xlsx',2,'H6:H5001');
    forceZ40 = xlsread('40.xlsx',2,'H6:H5001');
    forceZ50 = xlsread('50.xlsx',2,'H6:H5001');
    Hs1=spectrum.welch;
    Hs10=spectrum.welch;
    Hs20=spectrum.welch;
    Hs40=spectrum.welch;
    Hs50=spectrum.welch;

    Hpsd1=psd(Hs1,forceZ1,'Fs',Fs);
    Pxx1=Hpsd1.Data;
    W=Hpsd1.Frequencies;
    Hpsd10=psd(Hs10,forceZ10,'Fs',Fs);
    Pxx10=Hpsd10.Data;

    Hpsd20=psd(Hs20,forceZ20,'Fs',Fs);
    Pxx20=Hpsd20.Data;

    Hpsd30=psd(Hs30,forceZ30,'Fs',Fs);
    Pxx30=Hpsd30.Data;

    Hpsd40=psd(Hs40,forceZ40,'Fs',Fs);
    Pxx40=Hpsd40.Data;

    Hpsd50=psd(Hs50,forceZ50,'Fs',Fs);
    Pxx50=Hpsd50.Data;

    hpsd=dspdata.psd([Pxx1, Pxx10, Pxx20, Pxx30, Pxx40, Pxx50],W,'Fs',Fs);

    plot(hpsd);
    legend('Pxx1', 'Pxx10', 'Pxx20', 'Pxx30', 'Pxx40', 'Pxx50');
    waterfall(hpsd');

    grid on;

I have tried to look for various 3d options available in Matlab but couldnot find any except waterfall which can make a line plot in 3d but could not figure out how to use it with psddata object.

Please help.

Thanks.

I want my final plot to look like this:

http://www.originlab.com/index.aspx?go=Solutions/GraphGallery&pid=985