TRANSIENT ELECTROMAGNETIC GEOPHYSICS SYSTEM WITH COOPERATIVE SOURCE(S)
First Claim
1. A device for classifying and discriminating an unknown target object, the device comprising:
- a transmitter configured to generate a time-varying primary magnetic field in the vicinity of the target object, which time-varying primary magnetic field inductively couples with the target object to generate a target object secondary magnetic field;
at least one cooperative source to which the primary magnetic field is also inductively coupled, generating one or more respective cooperative source secondary magnetic fields, wherein the target object and the at least one cooperative source are inductively coupled via the target object secondary magnetic field and the one or more cooperative source secondary magnetic fields; and
a receiver configured to measure a composite inductive response, which comprises a measurement of the inductive coupling of the target object and the one or more cooperative sources.
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Abstract
A cooperative source electromagnetic induction (EMI) device includes: a transmitter configured to generate a time-varying primary magnetic field in the vicinity of a target object, which magnetic field inductively couples with the target object to generate a target object secondary magnetic field; and a cooperative source to which the primary magnetic field is also inductively coupled, generating one or more respective cooperative source secondary magnetic fields. The target object and the cooperative source are inductively coupled via the target object secondary magnetic field and the cooperative source secondary magnetic field. The device includes a receiver configured to measure a composite inductive response, which comprises the inductive coupling of the target object and the cooperative source. A data processor executes statistical classifier software to interpret a signature of the target object based upon the measured composite inductive response and identify the target object from the interpreted signature.
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Citations
20 Claims
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1. A device for classifying and discriminating an unknown target object, the device comprising:
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a transmitter configured to generate a time-varying primary magnetic field in the vicinity of the target object, which time-varying primary magnetic field inductively couples with the target object to generate a target object secondary magnetic field; at least one cooperative source to which the primary magnetic field is also inductively coupled, generating one or more respective cooperative source secondary magnetic fields, wherein the target object and the at least one cooperative source are inductively coupled via the target object secondary magnetic field and the one or more cooperative source secondary magnetic fields; and a receiver configured to measure a composite inductive response, which comprises a measurement of the inductive coupling of the target object and the one or more cooperative sources. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 20)
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9. A method for classifying and discriminating a target object, the method comprising:
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generating a time-varying primary magnetic field in the vicinity of the target object, which primary magnetic field inductively couples with the target object to induce a target object secondary magnetic field; positioning at least one cooperative source in the vicinity of the target object and the transmitter, where an inductive coupling of the primary magnetic field with the at least one cooperative source generates a cooperative source secondary magnetic field, and wherein the target object and the cooperative source are inductively coupled via the target object secondary magnetic field and the cooperative source secondary magnetic field; and measuring, with a receiver, a composite inductive response that comprises a measurement of the inductive coupling of the target object and the cooperative source. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification