Secant correction circuit

Details Secant correction circuit Secant correction circuit

1976-09-02

1978-04-11

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 11R, G01S 902

Patent

active

040841596

ABSTRACT:
An antenna tracking system in which attenuation of gain in the azimuth tracking circuit as a function of the angle of elevation of the antenna is compensated. A correction circuit is provided in the servo loop for amplifying the azimuth error signal and rate gyro signal by an amount equal to the secant of the elevation angle.

REFERENCES:
patent: 2715776 (1955-08-01), Knowles et al.
patent: 2728075 (1955-12-01), Sunstein
patent: 2740962 (1956-04-01), Hammond, Jr.
patent: 2784402 (1957-03-01), Whik et al.
patent: 3377589 (1968-04-01), Materer et al.
patent: 3697992 (1972-10-01), Kleptz et al.
patent: 3886555 (1975-05-01), Royal

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