| 摘要 |
PURPOSE:To make it possible to perform highly accurate position measurement n a broad range in real time by using the received data from a receiver for a moving-position measurement satellite and the correcting data from a correcting-data receiver, and obtaining the three-dimensional position coordinates of a moving body. CONSTITUTION:A moving position-measurement satellite receiver 31 receives a position measuring radio wave. A gyro-data processor 35 utilizes the signal from a gyroscope for inertial guidance for detecting the change in tree-dimensional position and forms the displacement amount data of the gyroscope. A correcting data receiver 32 receives the correcting data transmitted from a known coordinate base. When both receptions of the receiver 31 and the receiver 32 are normal, the received data from the receiver 31 and the correcting data from the receiver 32 are used, and the coordinates of the three-dimensional position of the moving body are obtained. When either of the reception of the receiver 31 or the reception of the receiver 32 is abnormal, the coordinate data of the three-dimensional position of the moving body are obtained (by using) the three-dimensional coordinate data measured at the previous time and the displacement amount data of the gyroscope. The three-dimensional coordinate data measured at this time are stored in a correction processor 33. |
