| 摘要 |
PURPOSE:To eliminate the need for connection change in an output of a tracking receiver by applying position control to an angle display of an azimuth axis so as to be coincident with a command angle set by a predetermined relation from angle display information of azimuth axis, elevating axis and orthogonal elevating axis. CONSTITUTION:An angle display signal of each axis is converted into a digital signal by resolver converters 16-18, compared with command angle information from a coordinate conversion circuit 19 or an angle command generating circuit 20 and fed to a tracking mode switch 13 via servo control circuits 21-23. In the self-tracking mode thrown to the position A, the elevating axis (EL axis) and the orthogonal elevating (XEL axis) drive system orthogonal to the EL axis are controlled always by an error signal from the tracking receiver, the azimuth axis (AZ axis) drive system is controlled by command angle information from the angle command generating circuit 20 and the position control where the angle display of the AZ axis is coincident with the command angle of the angle command generating circuit 20 is applied. The angle command generating circuit 20 applies an or bit predicting operation based on the angle display information of each axis and generates the command angle information of the AZ axis from the result of prediction.
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