I finally succeeded in calculating the up-conversion of seismic noise in the Kamioka-mine with both Mathematica and Scilab.

I just wanted to follow the thoughts from Flanagan and Thorne which give a procedure how to do the up-conversion from a given spectral noise distribution. Anyway, I also did the explicite calculation by using the time-dependent noise data from the Kamioka mine from Sakakibara-san.

Both calculations are consistent with each other.

Now, I only need the transfer functions for the various devices on which I did scattering/noise calculations to complete them.