| 摘要 |
<p>PURPOSE:To improve the accuracy of a target searching by comparing a target signal received by a conventional antenna with a target signal extracted from a signal received by a specific antenna having a wide beam width. CONSTITUTION:When a specific antenna 27 receives a reflected wave from a target 10, a guided missile position detector 28 outputs an Hi signal when a flying position is a predetermined altitude or more or an Lo signal when it is the altitude or less. A switch A29 outputs a target signal received by the antenna 27 at the time of the Hi signal or a target signal received by upper and lower side antennas 7, 8 at the time of the Lo signal. A switch B30 outputs a target gate signal from a target searching effective distance gate signal setter 13 at the time of the Hi signal, or a ground gate signal from a target searching effective distance gate signal setter 13 at the time of the Lo signal. A switch C31 outputs the output of a first demodulator 14 to a comparison discriminator 32 at the time of the Hi signal or to a ballistic effective distance clutter invasion detector 15 at the time of the Lo signal. Further, the discriminator 32 compares the target demodulation signal from a second demodulator with the output of the switch C31 to control a demodulation signal.</p> |
