本发明背景本发明是关于射频和红外导引系统,在本导引系统中,公用面配置成既能辐射和吸收射频能量,又能反射和聚焦红外能量。电光导引系统(例如红外系统)有极好的跟踪能力,因为其分辨率高,即带宽很窄。然而,在气候不好时,这类系统作用距离较近。相反,射频系统具有远程全天候能力,但跟踪精度不如电光系统的高。射频-红外复合导引系统兼有这两种系统的优点。然而,射频-红外系 BACKGROUND OF THE INVENTION The present invention relates to radio frequency and infrared guidance systems in which the common surface is configured to both radiate and absorb radio frequency energy and to reflect and focus infrared energy. Electro-optical guidance systems (such as infrared systems) have excellent tracking capabilities because of their high resolution, ie their narrow bandwidth. However, in poor weather, such systems operate more closely. In contrast, RF systems have long-range all-weather capabilities, but tracking accuracy is not as high as electro-optical systems. RF-IR composite guidance system combines the advantages of both systems. However, RF-IR systems