| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that manual polarization control has to be performed when cross polarization identification is lowered by considerably deviating polarized waves in the relation between the azimuth of an antenna and the inclining direction of the antenna when the antenna is inclined by an earthquake or the like in a conventional satellite tracking system. SOLUTION: In the satellite tracking system, when the antenna is considerably inclined in a disaster such as an earthquake and a beacon receiving level is lowered to an automatic tracking disabled level, a polarization correction angle calculation processing part 25 in an antenna control device 2 obtains the corrected angle of a polarization plane by using an inclination angle from a biaxial inclination gauge 14 and an antenna azimuth angle from an angle detector 11, and adds a polarization angle before antenna inclination stored in a polarization angle storage part 26 and the corrected angle to calculate a correction command angle. The calculated correction command angle is sent to a polarization driving part 15 and the deviation of the polarization plane can be corrected by control. Hereafter, the antenna is directed toward a satellite. COPYRIGHT: (C)2005,JPO&NCIPI
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