| 摘要 |
<p>PURPOSE:To fold a signal arrived from a specific intermediate repeater or an opposite station by superimposing command information of a signal folding location to a main signal and an excess house keeping bit from any repeater of a terminal station, transmitting a transmission signal with frame constitution, and transmitting it to the terminal station repeater of an opposite station having a maximum arrival range of the main transmission signal. CONSTITUTION:F1, F2 and F3 are frame synchronizing signals, L1, L2 and L3 are signal folding command signals utilizing excess house keeping bits and hatched parts represent normal transmission signals. The signal frame like this is generated from the terminal station repeater 1 and the signal folding position command signal of the L1, L2 and L3 are superimposed together with the normal main transmission signal (a), then the signal is folded at the signal reflecting position shown in the preset L1, L2 and L3, that is, intermediate repeaters 2, 3 or an opposite terminal station repeater 4.</p> |
