Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Reexamination Certificate
2004-03-19
2010-02-02
Hughes, Scott A (Department: 3663)
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
C367S038000, C367S041000, C324S323000
Reexamination Certificate
active
07656748
ABSTRACT:
The invention relates to a method of determining impulse responses from a medium (2) in relation to the transmission of waves between different points (T1-TN). The inventive method consists in: transmitting waves in the medium by generating, at each point j, signals ei(t) each comprising n elementary signals with respective frequencies which are spaced apart in pairs by an interval δf and which are different from the frequencies of the elementary signals corresponding to the other points; receiving signals rj(t) at points j after the transmission of the aforementioned waves in the medium; and calculating each impulse response hij(t) from a correlation signal between signal ei(t) transmitted at point i and signal rj(t) received at point j.
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De la Gorgue de Rosny Julien
Fink Matthias
Folegot Thomas
Julia-Prada Claire
Centre National de la Recherche Scientifique
Hughes Scott A
Miller Matthias & Hull
Universite Paris 7 - Denis Diderot
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