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1. 发明授权

US4047175A Television antenna directing and tracking system for television program network between air-borne and ground offices 失效
标题翻译：空中和地面办公室电视节目网络的电视天线定向跟踪系统
公开(公告)号：US4047175A
公开(公告)日：1977-09-06
申请号：US663529
申请日：1976-03-03
申请人： Hideya Taira , Kuniaki Shimizu
发明人： Hideya Taira , Kuniaki Shimizu
IPC分类号： G01S3/42 , G01S3/04
CPC分类号： G01S3/42
摘要： This invention relates to a television antenna directing and tracking system for directing a television repeating or relaying antenna mounted on an aircraft toward a ground station. The air-borne office is provided with a coordinate transforming device for transforming the azimuth angle .phi..sub.A (t) and the elevation angle .theta..sub.A (t) which represent the direction of the aircraft with respect to the longitude and latitude of the globe or the globe coordinate into the azimuth angle .phi..sub.B (t) and the elevation angle .theta..sub.B (t) at the air-borne coordinate. The ground office is equipped with receiving means and tracking means and the air-borne office receives command signals regarding the azimuth angle .phi..sub.A (t) and the elevation angle .theta..sub.A (t) from the ground office. Further, the air-borne office is equipped with means for computing by itself the azimuth angle .phi..sub.A (t) and the elevation angle .theta..sub.A (t) based on the flight informations without the aid of the ground office.
摘要翻译：本发明涉及一种用于将安装在飞机上的电视重复或中继天线指向地面站的电视天线引导和跟踪系统。空中办公室设有一个坐标转换装置，用于转换代表飞机相对于地球的经度和纬度的方位角θ（t）和仰角θA（t），或者地球坐标转换为方位角phi B（t）和空中坐标上的仰角θB（t）。地面办公室装有接收装置和跟踪装置，空中办公室从地面办公室接收关于方位角phi A（t）和仰角θA（t）的指令信号。此外，空中办公室配备有无需借助于地面办公室的方式，根据飞行情报自己计算方位角度ΦA（t）和仰角θA（t）。

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