公开(公告)号：US5517205A

公开(公告)日：1996-05-14

申请号：US40484

申请日：1993-03-31

申请人： Martin A. K. van Heyningen ,  John M. Evans, Jr.

发明人： Martin A. K. van Heyningen ,  John M. Evans, Jr.

IPC分类号： G01C15/00 ,  H01Q1/18 ,  H01Q1/28 ,  H01Q1/34 ,  H01Q3/08 ,  H01Q3/00

CPC分类号： H01Q1/34 ,  H01Q1/18 ,  Y10T74/1888

摘要： An antenna pointing device for use in a satellite tracking system, including a satellite tracking system mounted on a moving body. The tracking system has at least one sensor that generates a signal indicating the orientation of the moving body relative to the satellite. The pointing device includes a base mounted on the moving body, an antenna pointing arm carrying the antenna and a universal joint supported by the base. The pointing arm is rotatably mounted within the universal joint for rotation about first and second control axes, the universal joint being constructed and arranged to enable rotation of the pointing arm through greater than 180 degrees but less than 360 degrees about each of the first and second control axes while suffering no singularities of control. The universal joint is further constructed and arranged so that the orientation of the first control axis varies as the antenna pointing arm is rotated about the second control axis, and the orientation of the second control axis varies as the pointing arm is rotated about the first control axis. The pointing device further includes control means, responsive to the at least one sensor, for rotating the antenna pointing arm about the first and second control axes when the moving body changes its orientation so that the antenna is continuously pointed at the satellite.

摘要翻译： 一种用于卫星跟踪系统的天线指示装置，包括安装在移动体上的卫星跟踪系统。 跟踪系统具有至少一个传感器，其产生指示移动体相对于卫星的取向的信号。 指示装置包括安装在移动体上的基座，承载天线的天线指示臂和由基座支撑的万向节。 指针臂可旋转地安装在万向接头内，用于围绕第一和第二控制轴线旋转，该万向节被构造和布置成能使指点臂绕第一和第二控制轴的每一个旋转大于180度但小于360度 控制轴没有控制的奇点。 万向接头被进一步构造和布置成使得当天线指示臂围绕第二控制轴线旋转时，第一控制轴线的取向变化，并且第二控制轴线的取向随着指示臂围绕第一控制轴线旋转而变化 轴。 指示装置还包括响应于至少一个传感器的控制装置，用于当移动体改变其取向使得天线连续地指向卫星时，围绕第一和第二控制轴旋转天线指向臂。