| 摘要 |
PURPOSE:To unify a satellite arrival electric power by providing plural pilot signal transmitting stations, transmitting a single frequency different from the frequency used by a satellite communication with time division and variably controlling a transmitting electric power in accordance with the minimum attenuation quantity of plural pilot signals. CONSTITUTION:Pilot signal transmitting stations 71-7m mutually transmit the pilot signal of a single frequency different from the frequency used by the communication between earth stations 61-6n with time division. A detecting means 8i of an earth station compares an adjoining receiving pilot signal level which the same number as the transmitting stations 71-7m and detects the minimum attenuating quantity. A control means 9 controls the transmitting electric power in accordance with the minimum attenuating quantity. By the constitution, even in the satellite communication system not having a beacon transmitting function, the attenuating quantity of the uplink due to the rainfall, etc., is detected and the satellite arrival electric power can be constantly controlled. |
