Non-destructive probing system and a method thereof
First Claim
1. A non-destructive probing system for non-destructively probing for a search object buried in a matrix containing dielectric material by radiating electromagnetic waves to said matrix, comprising:
- a probe which is disposed in opposing relation to a surface of said matrix, radiates electromagnetic waves to said matrix, and detects radar reflection signals formed by reflection of said electromagnetic waves; and
a signal processor for calculating the signal reflected by the search object from said radar reflection signals, wherein said signal processor comprises;
a unit for forming designated groups from said radar reflection signals;
a storage for storing said designated groups of radar reflection signals individually, a first calculator for calculating a standard background signal from each of said designated groups of radar reflection signals stored individually, a second calculator for calculating a differential signal between each of said radar reflection signals and said standard background signal separately for each of said designated groups, and a unit for identifying the signal reflected from said search object out of said differential signal.
1 Assignment
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Accused Products
Abstract
A signal processor includes a unit for forming designated groups from radar reflection signals, a memory unit for storing the designated groups of radar reflection signals individually, a first calculator for calculating a standard background signal SB from each of the designated groups of radar reflection signals stored individually. The signal processor further includes a second calculator for calculating differential signals between the individual radar reflection signals and the standard background signal SB separately for each of the designated groups and a unit for identifying the signal reflected from a search object out of the differential signal.
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Citations
20 Claims
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1. A non-destructive probing system for non-destructively probing for a search object buried in a matrix containing dielectric material by radiating electromagnetic waves to said matrix, comprising:
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a probe which is disposed in opposing relation to a surface of said matrix, radiates electromagnetic waves to said matrix, and detects radar reflection signals formed by reflection of said electromagnetic waves; and
a signal processor for calculating the signal reflected by the search object from said radar reflection signals, wherein said signal processor comprises;
a unit for forming designated groups from said radar reflection signals;
a storage for storing said designated groups of radar reflection signals individually, a first calculator for calculating a standard background signal from each of said designated groups of radar reflection signals stored individually, a second calculator for calculating a differential signal between each of said radar reflection signals and said standard background signal separately for each of said designated groups, and a unit for identifying the signal reflected from said search object out of said differential signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for non-destructively probing for a search object buried in a matrix containing dielectric material by disposing a probe with respect to said matrix and radiating electromagnetic waves from said probe to said matrix, comprising the steps of:
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disposing an antenna in opposing relation to a surface of said matrix;
radiating electromagnetic waves from said probe to said matrix and detecting radar reflection signals;
forming designated groups from said radar reflection signals;
storing said radar reflection signals by dividing them into said designated groups;
determining a standard background signal for each of said designated groups;
calculating a differential signal between each of said radar reflection signals belonging to said selected group and said standard background signal; and
extracting the signal reflected by said buried search object from said differential signal. - View Dependent Claims (8, 9, 10, 11, 12, 14, 15, 16, 17, 19, 20)
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13. A program for executing a non-destructive probing method comprising a step of disposing a probe in opposing relation to a surface of a matrix which contains dielectric material, a step of radiating electromagnetic waves from said probe to the matrix and detecting radar reflection signals, and a step of processing radar reflection signals which contain reflection from a search object by using a signal processor, wherein said program makes said signal processor execute the steps of:
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radiating electromagnetic waves from said probe to the matrix and detecting radar reflection signals;
forming designated groups from said radar reflection signals;
storing said radar reflection signals by dividing them into said designated groups;
determining a standard background signal for each of said designated groups;
calculating a differential signal between each of said radar reflection signals belonging to said selected group and said standard background signal; and
extracting the signal reflected by said buried search object from said differential signal.
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18. A computer-readable storage medium that records a program for executing a non-destructive probing method comprising a step of disposing a probe in opposing relation to a surface of a matrix which contains dielectric material, a step of radiating electromagnetic waves from said probe to the matrix and detecting radar reflection signals, and a step of processing radar reflection signals which contain reflection from a search object by using a signal processor, wherein said storage medium makes said signal processor execute the steps of:
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radiating electromagnetic waves from said antenna to the matrix and detecting radar reflection signals;
forming designated groups from said radar reflection signals;
storing said radar reflection signals by dividing them into said designated groups;
determining a standard background signal for each of said designated groups;
calculating a differential signal between each of said radar reflection signals belonging to said selected group and said standard background signal; and
extracting the signal reflected by said buried search object from said differential signal.
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Specification