UNDERGROUND RADAR EXPLORATION METHOD, DEVICE AND PROGRAM OF FREQUENCY VARIABLE SYSTEM,申请号JP20020105622-传众专利搜索

UNDERGROUND RADAR EXPLORATION METHOD, DEVICE AND PROGRAM OF FREQUENCY VARIABLE SYSTEM

申请公布号：JP2003302465(A)

申请号：JP20020105622

申请日期：2002.04.08

申请公布日期：2003.10.24

申请人：

KAJIMA CORP

发明人：MASUMOTO KAZUHIKO;ABE TAISUKE;SUYAMA YASUHIRO;TOIDA KATSU

分类号：G01V3/12;G01S7/03;G01S13/88;(IPC1-7):G01S13/88

主分类号：G01V3/12

摘要：PROBLEM TO BE SOLVED: To provide an underground radar exploration method, a device and a program therefor of a frequency variable system capable of analyzing a ground structure having frequency dependency. SOLUTION: An electromagnetic wave 38 of which frequency changes at a prescribed pattern, is allowed to enter the underground 1 from a transmitter 18 on the ground surface 2, and a reflected electromagnetic wave 39 from the underground discontinuity surface 3, 4 of the electromagnetic wave 38 is received by a receiver 19 on the ground surface 2 separated at a fixed interval w from the transmitter 18, and a time delay and an amplitude change of the reflected wave 39 to the incident wave 38 are detected relative to each frequency, and the position and the reflectance of the discontinuity surface 3, 4 are calculated relative to each frequency based on the detected time delay and amplitude change. While moving the transmitter 18 and the receiver 19 kept at the fixed interval w along the ground surface 2, a cycle from incidence of the electromagnetic wave 38 to calculation of the position and the reflectance is repeated, to thereby generate a profile 26 classified by the frequency of the underground discontinuity surface 3, 4 based on calculated values of the position and the reflectance of the discontinuity surface at each incident spot. COPYRIGHT: (C)2004,JPO