Tracking controller for three-axis mount antenna systems

Details Tracking controller for three-axis mount antenna systems Tracking controller for three-axis mount antenna systems

1989-03-16

1991-02-19

Sikes, William L.

Communications: radio wave antennas

Antennas

With means for moving directive antenna for scanning,...

H01Q 300

Patent

active

049948156

ABSTRACT:
In a satellite tracking control system, a receiver derives a pair of elevation (EL) and cross-elevation (XEL) tracking error signals having a quadratic relationship in a coordinate system from a signal received from a polar-orbital satellite. Elevation and cross-elevation motors are respectively controlled in response to the elevation (EL) and cross-elevation (XEL) tracking error signals. An azimuth controller derives an azimuth control signal from angle data representing the angles of the antenna about the azimuth, elevation and cross-elevation axes detected by angle detectors. Preferably, the antenna is rotatable about the elevation (EL) axis in the range between zero and 180 degrees.

REFERENCES:
Air Force Manual; "Communications-Electronics Terminology"; pp. 39-672, 3; Apr. 1959.
Markus; Electronics Dictionary; McGraw-Hill; 4th ed.; p. 581; Jan. 1986.

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