| 摘要 |
<p>PURPOSE:To make it pssible to prevent erroneous operation due to a jamming wave received from a part other than a central part, by operating the tile fuse only when a sum signal exceeds a predetermined value and a difference signal exceeds the predetermined value two times within a predetermined period. CONSTITUTION:The signal entering a comparator 9 is compared with a predetermined threshold value and, during a time when said signal exceeds said threshold value, a signal is outputted to a gate circuit 21. The difference signal added by a power coupler 18 is inputted to a mixer 6 and converted to a Doppler signal in the same way as a sum signal before inputted to a comparator 20. The doppler signal is compared with a predetermined threshold value in said comparator 20 and, if exceeds said threshold value, a signal is outputted to the circuit 21. When a target airplane is grasped by the center of an antenna 15, the output signal from the comparator 19 is necessarily present while the difference signal exceeds the threshold value of the comparator 20 two times within a predetermined period and, therefore, a counter 22 outputs a signal. A detonation circuit 10 converts the signal outputted from the counter 22 to a detonation signal and sent to a warhead 12 through a safe apparatus 11 to detonate the same.</p> |
