| 摘要 |
PURPOSE:To prevent a signal for compensating an interference wave from becoming an interference signal for a desired signal by detecting that the receiving level of the signal for compensating the interference wave is a prescribed value or below and setting the amplitude and phase of the signal for compensating the interference wave to a prescribed value. CONSTITUTION:An inputted signal for compensating an interference wave is automatically set to a prescribed level, controlled corresponding to an error signal, a controlled signal for compensating the interference wave is synthesized with a desired signal and the interference signal included in the desired signal is removed. When the received signal for compensating the interference wave is the prescribed value or below, a control means detects that the receiving level is the prescribed value or below, and an interference signal removing means is controlled so as to set to the prescribed amplitude value and the phase value specified beforehand. Thus, when the receiving level of the signal for compensating the interference wave is changed from the condition of the prescribed value or below to the condition of the prescribed value or above, it can be evaded that the signal for compensating the interference wave becomes the interference signal for the desired signal and is synthesized. |
