| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To sufficiently reduce delay time setting error for suppressing scattering of detection angle due to distance and outputting ignition signal to a fuse. <P>SOLUTION: A proximity fuse device loaded on a missile loading a warhead has a distance correlator detecting a target level based on a spectrum diffusion signal reflected by the target object; a memory storing a first threshold defined by a value that a specific value is evenly subtracted at every distance in advance for the target level and a second threshold defined by thermal noise and S/N; and a comparator comparing the first threshold and the second threshold read out of the memory according to the distance to the target object and the target level detected by the distance correlator, and producing a detection output of the target object when the target level exceeds the first threshold and the second threshold. <P>COPYRIGHT: (C)2003,JPO</p> |
