Research on BPSK Communication Technology Based on Magnetic Induction Resonance
In view of the problems that underwater acoustic,electromagnetic wave and laser technology can't meet the re-al-time high-speed communication of underwater formation due to the absorption and scattering of water,the interference and noise of acoustic wave propagation caused by underwater objects and organisms,the conductivity of water,and the scattering and absorp-tion of water molecules and suspended objects,a communication mode based on magnetic induction is proposed.The information is carried in the coupling magnetic field between the receiving and receiving antenna coils,and the information is transmitted through the changing magnetic field.At the sending end,the modulating signal causes the change of current in the sending coil.According to the principle of electromagnetic induction,the change of current will cause the change of magnetic field.At the receiving end,the changing magnetic field caused by the sending end changes the magnetic flux through the receiving coil,causing an induced cur-rent to which the information is eventually transmitted.The experimental results show that the proposed method can realize basic communication in communication.The proposed method results in a bit error rate of 0.05%.
magnetic induction voltagecoilmagnetic communication systeminformation transmission
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