Radiolocation system for determining the direction of incident e

Details Radiolocation system for determining the direction of incident e Radiolocation system for determining the direction of incident e

1978-05-04

1980-03-18

Blum, Theodore M.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343123, H04B 700

Patent

active

041942078

ABSTRACT:
An antenna array for a radiolocation system, consisting of three loop antennas in mutually orthogonal planes and three dipole antennas extending along the intersections of these planes, is scanned by a pair of synchronized multplexers sequentially connecting two receiving channels to different loops and to different dipoles in a recurrent cycle. The loop and dipole voltages concurrently appearing in the outputs of the two receiving channels are fed to an analog multiplier; the resulting product, after filtering and integration, is converted to digital form and written into a memory stage assigned to the respective loop/dipole combination. The registered products are sequentially read out, in the rhythm of the scan, and are processed in a digital calculator to yield azimuthal and/or elevational data which are stored and visually displayed.

REFERENCES:
patent: 2256619 (1941-09-01), Luck
patent: 2513485 (1950-07-01), Herrick
patent: 3042917 (1962-07-01), Elhoff
patent: 3106710 (1963-10-01), Stover
patent: 3332082 (1967-07-01), Hatch
patent: 3441900 (1969-04-01), Ulstad et al.
patent: 3495246 (1970-02-01), Schonenborn
patent: 3824596 (1974-07-01), Guion et al.
patent: 3987446 (1976-10-01), Lipsky et al.

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