| 摘要 |
<p>A receiver which selectively switches an antenna which provides a reception signal with a good signal usability. The receiver cuts off a noise detecting filter during a predetermined cut-off period tau after an antenna has been selectively switched by a switching circuit (8). The presence/absence of a noise component Dn delivered by the noise detecting filter (15) is determined in accordance with the logic value of binary data Dc delivered by a comparator (16). The presence/absence of the noise component Dn is thus determined after the predetermined period tau . This allows for preventing the effect of an impulse noise irrespective of the impulse noise produced when the antenna selectively switched provides a reception signal with a good signal usability, thereby making it possible to use the selected antenna for providing a reception signal with a good signal usability. Thus, it is possible to prevent improper control on the switching of antennas. <IMAGE></p> |
