File list (Check if you may need any files):
signal processing program
.........................\Correlationmiss.f
.........................\EOF.f
.........................\Gaussfilter.f
.........................\REOF.f
.........................\RUNGE-KUTTA.f
.........................\SButterworh.f
.........................\Scrosspectrum.f
.........................\Scspectrum.f
.........................\Sdifferhl1.f
.........................\Sdifferhl1V.f
.........................\Sdifferhl2.f
.........................\Sdifferhl2V.f
.........................\Sdspectrum.f
.........................\Sfourier.f
.........................\Sllcorrelation.f
.........................\Sllyear.f
.........................\Smllcorrelation.f
.........................\Smscorrelation.f