| 摘要 |
PURPOSE:To attain a one frequency system excellent in frequency utilization efficiency by eliminating the inter-transmission-reception interference from the transmission port to the reception port. CONSTITUTION:The frequency of the signal transmitted by a frequency shifter 1 is made to coincide with that of the signal to be received, and a multiplier 2 operates multiplication to obtain an inter-transmission-reception interference amount alpha. A subtractor 3 removes said interference, and a normal signal is outputted. And a code identifier 70 identifies a code while a subtractor 71 detects code identification error. A multiplier 72 outputs the imaginary part of the product of the said error and the conjugation value of the output of a multiplier 2 in order to control the frequency shifter 1. |
