| 摘要 |
Electromagnetic waves are emitted toward the ground by an electromagnetic wave emitting means (1), and reflected waves are received by receiving means (2a) dispersed on a plane. The underground state of an area is three-dimensionally analyzed based on the data received by the receiving means (2a). The three-dimensionally analyzed data are outputted for every underground depth. Therefore, the underground state can be grasped three-dimensionally. |
