| 摘要 |
PURPOSE:To shorten the required time for automatic tracking, by adjusting the azimuth of a reflector according to the directivity in the difference between two receiving levels when the reception levels fail to be above the predetermined value while a moving object is moving. CONSTITUTION:A hydraulic actuator 16 is provided with a potentiometer 24 to detect the elevation angle of a parabolic reflector 2 while a hydraulic actuator 18 is provided with a potentiometer 26 to detect the azimuth of the reflector 2. The actuator 18 also is provided with an inclination sensor 28 to detect the inclination of a ship. A main receiving level M, a subreceiving level S, output signals of the potentiometers 24 and 26 and output signals of the sensor 28 and fed to a microcomputer 34 through an input adjusting circuit 30 and an A/D converter 32. The computer 34 calculates the elevation and the azimuth of the reflector 2 based on the data fed to supply a control signal to solenoid valves 20 and 22. |
