| 摘要 |
PURPOSE:To facilitate the compensation of mutual interference in a compensation circuit by inserting a pilot signal respectively at the sending side to two signal sent by the cross polarized wave transmission system. CONSTITUTION:The data of a signal processing unit 1 and the output of a pilot signal generator 4 are mixed by transmitter 2, 3 and the result is sent via a coupler 5 and an antenna 6. After the signal is received by an antenna 7, the result is separated by a demultiplexer 8, compensated by an interference compensation circuit 10, the phase of the pilot signal of each polarized wave recovered by carrier recovery circuits 13, 14 are compared by using a signal from demodulator 11, 12 and its output controls a variable phase shifter 9 so that the phases of both the pilot signals are made coincident.
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