| 摘要 |
PURPOSE:To prevent an induction system from detecting and following up a target which has already been detected by another induction system by judging whether or not any electric wave component other than that of reflected wave of its transmission wave has been received upon detection of the target, and switching operation between searching and following-up. CONSTITUTION:In a state where an induction system other than an induction system 1 detects a target 43 and irradiates it with a transmission wave, once the present induction system 1 searches the target, respective induction systems radiate transmission waves asynchronously, and hence a reflected wave by the target 43 sent from a transmitter 26 is detected by a target detector 20 and a reflected wave caused by a transmission wave from another induction system is detected by another electric wave detector 21. Further, a changeover switch 25 does not satisfy set conditions and does not perform switching control because the respective reflected waves are received substantially at a same reception angle. Thus, the induction system 1 successively searches the target and prevents a plurality of flying bodies from being induced to the target 43. |
