| 发明名称 |
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| 摘要 |
PURPOSE:To enable probing with good resolving power, by collecting a reflected signal on the basis of a wide band inpulse signal by a circular polarized wave antenna and compensating the marked distortion of the wave form of the circular polarized wave antenna by signal processing. CONSTITUTION:The wide band electric signal generator from a transmitter 16 is converted to a circular polarized wave signal 19 through a circular polarized wave antenna 18 to be transmitted into the ground. The signal 19 reaches an object 20 and reflected or scattered to be detected through a circular polarized wave antenna 23 and filtered in a receiver 24 and accumulated in memory 25 while receives A/D conversion. The signals accumulated in the memory 25 are successively read and receive pulse compression by a wave form shaping part 26. A position coordinates signal is generated by a mechanism 22 for moving an antenna and received by a receiver 24 to be stored in the memory 25 corresponding to the reflected signal from the ground. The wave forms by pulse compression are arranged in the order of position coordinates and displayed on CRT27 in a cross-sectional area shape or stored in a data recorder 28 for the purpose of high order signal processing or analytical display. |
| 申请公布号 |
JPH0427511(B2) |
申请公布日期 |
1992.05.12 |
| 申请号 |
JP19840075618 |
申请日期 |
1984.04.14 |
| 申请人 |
NIPPON TELEGRAPH & TELEPHONE |
发明人 |
UENO KEIICHI;OOSUMI NORYOSHI |
| 分类号 |
G01S13/88;G01S7/32;G01S13/02;G01V3/12 |
主分类号 |
G01S13/88 |
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