| 摘要 |
PURPOSE: An apparatus for correcting a tilt angle to control a stance of a satellite antenna system is provided to obtain correctly a tilt angle and optimize the stance by removing an influence of lateral acceleration. CONSTITUTION: An apparatus for correcting a tilt angle to control a stance of a satellite antenna system includes a compensation unit, a high-frequency component extraction unit, a low-frequency component extraction unit, and a mixing unit. The compensation unit includes a first phase compensation filter, a first differentiation low-pass filter, a gyration radius error extractor, a multiplier, and a first mixer. The first phase correction filter(200) is used for controlling a phase of a sensing signal of a tilt angle sensor of a pedestal. The first differentiation low-pass filter(202) is used for controlling and differentiating a phase of angular velocity of a second angular velocity sensor and passing a low frequency of a particular band. The gyration radius error extractor(204) is used for extracting an error signal. The multiplier(206) is used for outputting the linear acceleration by multiplying an output of the first differentiation low-pass filter by an output of the gyration radius error extractor. The first mixer(208) is used for mixing an output of the multiplier with an output of the first phase correction filter.
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