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Non-destructive probing system and a method thereof
| Details |
Inventors: Sugiyama, Kentaro; Abe, Atsushi;
Assignee: International Business Machines Corporation (Armonk, NY)
Primary Examiner: Gregory; Bernarr E.
Assistant Examiner:
Attorney, Agent or Firm: Jennings; Derek S
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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DETAILED DESCRIPTION The present invention has been achieved in view of the above problems.
It solves them by providing a non-destructive probing system, a non-destructive probing method, a program for conducting non-destructive probes, and a computer-readable storage medium storing the program.
The present invention has been completed based on the finding that the intensity of radar reflection from the surface of a matrix is highly correlated with the distance between the probe and matrix surface.
Specifically, the present invention divides radar reflection signals into groups according to the practical distance, calculates a standard background signal for each radar reflection signal group, and calculates differential signals between the individual radar reflection signals and the standard background signal of the given group.
Thus, by making distinctions between signals that differ greatly from each other in the probe-to-matrix-surface distance, the present invention can improve the accuracy and sensitivity of probing.
According to the present invention, the designated groups of radar reflection signals are formed in accordance with the distance between the above described probe and the above described matrix surface.
Also, according to the present invention, the designated groups of radar reflection signals are formed using peak intensities of the above described radar reflection signals.
According to the present invention, the above described standard background signal is generated as the average, median, maximum value, or minimum value of the standard background signals classified into the same group among the above described designated groups.
According to the present invention, the above described matrix is soil.
According to the present invention, the above described electromagnetic waves have a frequency of 10 GHz or less.
The present invention comprises a step of forming the designated groups of radar reflection signals in accordance with the distance between the above described probe and the above described matrix surface
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