| 摘要 |
<p>PURPOSE:To make a reflection echo sharp in an image of a B scope and to easily decide a burying position by detecting the peak of a reflected wave signal from a buried body and displaying only the peak. CONSTITUTION:An antenna system 1 moves along a structure body 6 or the surface of the ground 6, sends a radio wave toward the structure body or ground 6 by its transmitting antenna 1-1, and receives its reflected waves from the surface and buried body 5 by its receiving antenna 1-2. Then a surface processing circuit 2 removes the reflected wave from the surface from the reflected wave and inputs only the reflected wave from the buried body 5 to a peak detecting circuit 3. The B-scope image of this peak signal is inputted to a display circuit 4. Thus, only the peak is displayed and a cursor is displayed on the screen of the B scope to detect the peak in a constant range centering on the cursor; and the cursor is moved to the position and thus the burying position of the buried body 5 is easily decided.</p> |
