Quasi-doppler direction finding equipment

Details Quasi-doppler direction finding equipment Quasi-doppler direction finding equipment

1979-12-17

1981-09-29

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

G01S 354

Patent

active

042926394

ABSTRACT:
A quasi-doppler direction finder is provided wherein the alternate dipole elements are divided into two groups. Each of the groups is connected to an associated RF attenuator which is driven by a control signal 180.degree. out-of-phase from that for the other group. Commutation between dipoles occurs so that there is a 50% overlap of "on" time between adjacent dipoles. Switching for each dipole occurs when its associated modulating function passes through zero.

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