SYSTEM AND METHOD FOR SEISMOLOGICAL SOUNDING
First Claim
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1. A method of seismological sounding, including the steps of:
- generating a continuous spread spectrum signal;
generating in a target medium an acoustic wave corresponding to the spread spectrum signal;
receiving one or more return signals from the target medium generated by interaction between said acoustic wave and the target medium; and
processing the return signals to obtain seismic sounding data describing the target medium.
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Abstract
Systems and methods for seismological sounding with acoustic signals and, more particularly, systems and methods for performing geophysical surveys using spread spectrum acoustic waves generated by non-impulsive sources. A spread spectrum signal is generated and coupled to a medium that is to be sounded for propagation of an acoustic wave through the medium. One or more return signals are received from the medium that are generated by interaction between the acoustic wave and the medium. The return signals are possessed to obtain seismic sounding data describing the structural features of the medium.
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Citations
30 Claims
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1. A method of seismological sounding, including the steps of:
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generating a continuous spread spectrum signal; generating in a target medium an acoustic wave corresponding to the spread spectrum signal; receiving one or more return signals from the target medium generated by interaction between said acoustic wave and the target medium; and processing the return signals to obtain seismic sounding data describing the target medium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for effecting seismological sounding in a medium, comprising:
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a spreading sequence generator configured to generate a continuous spread spectrum signal; a transmit transducer configured to receive the continuous spread spectrum signal, mechanically couple the continuous spread spectrum signal to a target medium, and generate in the target medium an acoustic wave corresponding to the spread spectrum signal; a receive transducer configured to receive one or more acoustic return signals from the target medium generated by interaction between said acoustic wave and the target medium and convert the acoustic return signals to electronic return signals; and a signal processor configured to receive the electronic return signals and process the electronic return signals to obtain seismic sounding data describing the medium. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A computer program product for seismological sounding, said computer program product comprising a digital storage media and a set of machine readable instructions stored on said digital storage media, wherein said instructions are executable by a computer to:
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generate a continuous spread spectrum signal; transmit the continuous spread spectrum signal to a transmit transducer mechanically coupled to a target medium; receive one or more return signals from a receive transducer mechanically coupled to a target medium; and process the return signals to obtain seismic sounding data describing the target medium. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification