Instantaneous spectral analysis

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science

Reexamination Certificate

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C702S011000, C702S017000, C073S594000, C073S152010, C367S911000, C367S075000, C367S074000, C346S0330WL, C181S108000, C181S106000, C175S001000, C175S040000, C175S050000, C375S240190

Reexamination Certificate

active

06985815

ABSTRACT:
A method of seismic data processing is described in which a particular wavelet is selected from a plurality of wavelets as being most characteristic of a received seismic signal. A subtracted signal can be determined by subtracting a weighted signal of the particular wavelet from the received signal. From the subtracted signal, an additional particular wavelet can be chosen. The process of subtracting a signal and determining an additional particular one of the plurality of wavelets can be repeated until a criterion is met. The method can be repeated at several depths. The resultant spectral analysis can be used to determine, for example, an absorption coefficient.

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