| 摘要 |
<p>PROBLEM TO BE SOLVED: To calculate limit of exact surveying capability by rationally obtaining a region capable of regarding a uniform region in a survey region. SOLUTION: For producing two-dimensional image data s(x, t) of a moving distance (x) on the ground surface and reflection time (t) against a reception signal intensity (s) as coordinates (x, t) by using an underground radar and surveying the position of an underground object, each reception signal intensity of each image data in the reflection time direction is processed at every moving distance (x) with a specific calculation to obtain a moving distance representative intensity S(x)t , which is unified in the reflection time (t) direction, and a region where the obtained moving distance representative intensity is within a determined intensity threshold range is extracted from the two-dimensional image data s(x, t).</p> |
