Fourier Amplitude Spectra

[sam123 offline]

Hi everyone

What procedure is used in the Seismosignal to obtain the Fourier Amplitude spectra? Please explain required steps to calculate the Fourier Amplitude spectra of an input record in this software.

Thanks so much

[z.gronti offline]

Dear sam123,

Once you load the record, the Fourier Amplitude Spectrum and the Power Spectrum are automatically computed. Please refer to "Fourier and Power Spectra" page of SeismoSignal Help System for more information.

[sam123 offline]

Dear z.gronti

Thank you for your response but I did not find a detailed description for the calculation of the fourier amplitude spectra in the page of SeismoSignal Help System. I would be grateful if you could guide me about that how is calculated fourier amplitude spectra in the seismosignal.

[seismosoft offline]

Hello sam123,
You may find the description you are looking for in any good textbook or in the internet (e.g. see: https://en.wikipedia.org/wiki/Fast_Fourier_transform)
Seismosoft Support