| 摘要 |
1. An apparatus for preselecting the Doppler frequency response of a proximity fuze comprising, in combination, radar means for determining the relative velocity between a selected target and a proximity fuze and for developing a predetermined control current correlative to this information, tunable amplifier means in the proximity fuze discretely responsive to said control current and adapted to render the proximity fuze selectively responsive to the determined relative velocity between the selected target and the proximity fuze, a conductive sleeve on the proximity fuze electrically connected to said tunable amplifier, and contact means detachably abutting said sleeve and electrically connected to said radar means for applying said control current to the fuze prior to the firing thereof at the selected target.
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