Antenna system for tracing geostationary satellite
专利汇可以提供Antenna system for tracing geostationary satellite专利检索，专利查询，专利分析的服务。并且PURPOSE: To attain sure reception and transmission with a geostationary satellite by comparing a position signal representing a present position of an antenna with a peak value signal representing the position with the strongest radio wave receiving thereat and driving the antenna so as to make the discrepancy zero.
CONSTITUTION: When an antenna 8 is directed toward a geostationary satellite, a changeover switch 26 is switched to the position shown in solid lines in figure so as to control the attitude of the antenna 8 depending on the strength of the radio wave sent from the geostationary satellite. A giro sensor 30 measures the displacement speed of the antenna 8 in this state and an integration device 31 sends a position signal θ
f representing the present position of the antenna 8. The signal θ
f is sent to a comparator 27 and sent to a 2nd object setting device 32, where a peak value signal θ
p representing a position with a strongest radio wave is obtained. The comparator 27 compares both the signals θ
f , θ
p to obtain its difference being an error signal ▵θ, which is sent to a drive signal generator 33. The generator 33 drives the antenna 8 with a driver 28 so that the signal ▵θ is zero, in other words, the direction of the antenna 8 is θ
p .
COPYRIGHT: (C)1990,JPO&Japio，下面是Antenna system for tracing geostationary satellite专利的具体信息内容。
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