PURPOSE: To obtain acoustic wave data generated by the temperature, density, and water current of seawater by receiving tomography data from a transmitter receiver fixed in the sea through the receiving converter of an anchored repeater and sending said data to a ground state in real time.
CONSTITUTION: An acoustic wave from a transmitter 1 is received by the transmitter-receiver 2 as in-sea tomography (TD) information. The data from the transmitter-receiver 2 is sent to the anchored repeater 3. The repeater 3 receives the data from transmitter receiver 2 so that the receiving converter 3-1 installed on the repeater 3 correspond to the transmitter receiver 2 in 1:1 or 1:plural proportion. The data is sent from the converter 3-1 to a real-time transmission buoy 3-3 through a transmission cable 3-2 and transmitted to the ground station 5 from the buoy 3-3 as a radio wave through an artificial satellite 4.
KAI GENTARO
HARA TOSHIAKI
NAKANO IWAO
