SATELLITE TRACKING DEVICE

申请公布号：

JPS57108767(A)

申请号：

JP19800185891

申请日期：

1980.12.26

申请公布日期：

1982.07.06

申请人：

TOKYO SHIBAURA DENKI KK

发明人：

SUDOU TSUGIO

分类号：

H01Q3/00;G01S3/42

主分类号：

H01Q3/00

摘要：

PURPOSE:To reduce the tracking error of an antenna to a satellite when it passes the position near the zenith, by slowly changing an AZ command angle just before the satellite passes the zenith. CONSTITUTION:When a satellite passes the point near the zenith, the AZ angle change start time of the angle designation signal which is transmitted to an antenna 11 from a satellite tracking device 12 is set earlier than a prescribed time of the change start time of the AZ angle with which the satellite is actually viewed from the antenna 11. As a result, the AZ command angle varies slowly before the satellite passes the zenith and then inverted to 180 deg. from 0 deg.. Thus the tracking angle error is grealy reduced. In such way, the tracking error of the antenna against the satellite which passes the point near the zenith is reduced.