| 摘要 |
PURPOSE:To eliminate the bright line interference, by multiplying between a base band signal and a transmission code estimated value by a coefficient of complex number and subtracting said difference signal from the base band signal. CONSTITUTION:A bright line interference signal from an FM in an input signal is detected by an error detector 100, synchronism is taken by a phase locked loop 300 and it is fed to a coefficient circuit 400 as a sinusoidal wave. The complex number fed to a terminal 405 is variably changed and a sinusoidal wave having the same amplitude and the same phase as the bright line interference by said FM is produced. The bright line interference included in the input signal can be eliminated by subtracting this sinusoidal wave from the input signal by the subtractor. |
