| 摘要 |
PURPOSE:To improve the antinoise performance of a train position detecting device in crossing induction line system. CONSTITUTION:A pair of antennas 3a and 3b are installed on a vehicle side, and dispersion signals are sent out alternately from these antennas 3a and 3b to a crossing induction line 1. While, on the ground side, a receiving device (b) which reversely dispersion-processes the dispersion signal which is received through the crossing induction line 1 is installed. Accordingly, the change between the case where a pair of antennas 3a and 3b are positioned oppositely to one loop 1a, 1b, 1c and the case where a pair of antennas are positioned, having a transposition point 1' interposed can be discriminated distinctly. |
