While the Fourier transform is a method for changing the seismic waves in the time domain into the

In other words, a seismic wave can be generated by summing several single-frequency sinusoidal wave. Sedangkah a sinusoidal wave is known as Fourier series.
While the Fourier transform is a method for changing the seismic waves in the time domain into the frequency domain. The reverse process is Inversion Fourier transform (Inverse Fourier Transform). Both images above courtesy: Margrave G. et al., Consortium for Research in Elastic Wave Exploration Seismology, The University of Calgary.
Fourier term used to honor Joseph Fourier (176 8 - 1830), mathematician solving partial differential equations of heat diffusion model, he solved it by using infinite series of trigonometric functions. Joseph palitodedente Fourier Photo is courtesy of Wikipedia.
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