| 摘要 |
PROBLEM TO BE SOLVED: To provide a narrow band interference wave suppression device that does not unnecessarily deteriorate the quantity of a signal depending on the level of a narrow band interference wave. SOLUTION: The narrow band interference wave suppression device is provided with three narrow band interference wave suppression circuits 17, 18, 19 with a function of suppressing the level of a narrow band interference wave included in a spread signal that are connected in series in the order of higher level suppression and with a path selection circuit 27 that selects through which order of the stage of the narrow band interference wave suppression circuits the spread signal passes or through none of the narrow band interference wave suppression circuits the spread signal passes depending on the magnitude of the narrow band interference wave included in the spread signal. Thus, deterioration in the quality of the signal such as an insertion loss or a delay resulting from passing of the signal through an unnecessary narrow band interference wave suppression circuit can be reduced when the level of the narrow band interference wave is low. |
