Cut the clutter

时间:2019-03-07 12:09:02166网络整理admin

By Barry Fox As a missile approaches a target, the radar-controlled fuse that tells it when to explode can be confused by objects near the target. But a military patent just published has a solution. A proximity fuse filed by Licentia Patent of Frankfurt (GB 2 336 196) has a radar transmitter and receiver in the tip which analyses the Doppler shift in reflections from the target. To avoid “clutter” echoes from the ground, the fuse is pre-programmed with a reference library of the steady reflection characteristics of dry sand, moist soil,