Chaff discrimination system

Details Chaff discrimination system Chaff discrimination system

1961-11-02

1976-05-18

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

102 702P, F42C 1304, G01S 902

Patent

active

039582418

ABSTRACT:
1. A microwave radio fuze system for a missile having means for discriminng between a target and chaff comprising in combination, a pair of oppositely polarized transmitting antennas operably connected to a frequency modulated oscillator by a first switch means, a receiving antenna polarized in the same direction as one of said transmitting antennas, mixing means operably associated with said receiving antenna for mixing a portion of a transmitted signal with a received echo signal, amplifier means adapted to amplify said mixing means output, a pair of envelope detectors operably connected to said amplifying means by a second switch means, a difference amplifier adapted to receive the output from said pair of envelope detectors whereby a firing signal is provided by said difference amplifier when the output of a certain one of said detectors exceeds the output of said other detector, and means for controlling said first and second switch means whereby said pair of transmitting antennas and said pair of detectors are synchronously controlled.

REFERENCES:
patent: 2421012 (1947-05-01), Chew
patent: 3131388 (1964-04-01), Baker
patent: 3877377 (1975-04-01), Rabinow

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