Verfahren zum Betrieb eines rotierenden Raumfahrzeugs mit variierender Rotationsgeschwindigkeit
    5.
    发明公开
    Verfahren zum Betrieb eines rotierenden Raumfahrzeugs mit variierender Rotationsgeschwindigkeit 有权
    用于具有变化的旋转速度操作的旋转空间车辆的方法

    公开(公告)号:EP1243507A2

    公开(公告)日:2002-09-25

    申请号:EP02004801.3

    申请日:2002-03-02

    申请人: Astrium GmbH

    IPC分类号: B64G1/28

    摘要: Beschrieben wird ein Verfahren zum Betrieb eines Raumfahrzeugs (1), das zumindest eine mit einem Himmelskörper zusammenwirkende Einrichtung (2,3) aufweist, wobei eine Rotation des Raumfahrzeuges um zumindest eine Körperachse des Raumfahrzeuges erfolgt. Die Rotation des Raumfahrzeuges wird verlangsamt, wenn die mit dem Himmelskörper zusammenwirkende Einrichtung im wesentlichen in Richtung des Himmelskörpers ausgerichtet ist.

    摘要翻译: 一种方法,用于操作具有至少一个与天体(2,3),其中,所述航天器的旋转的至少约需航天器的本体的轴线位置配合的空间飞行器(1)进行说明。 如果与天体配合在天体的方向基本上对齐的空间车辆的旋转被延迟。

    Combined roll-yaw spacecraft steering method for low earth orbit target trajectory compensation
    9.
    发明公开
    Combined roll-yaw spacecraft steering method for low earth orbit target trajectory compensation 有权
    us n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n

    公开(公告)号:EP1110862A2

    公开(公告)日:2001-06-27

    申请号:EP00127669.0

    申请日:2000-12-18

    IPC分类号: B64G1/24

    摘要: For an antenna (22) on a satellite (10) in an inclined orbit about the Earth (13), cross-track motion resulting from the rotation of the Earth (13) can be reduced in antenna coordinates by yawing and/or rolling the antenna (22) (preferably by yawing and/or rolling the entire satellite (10), for example, by using a reaction wheel system) by an appropriate angle, which varies throughout the orbit (12) (Fig. 4).

    摘要翻译: 对于围绕地球(13)的倾斜轨道上的卫星(10)上的天线(22),由地球(13)的旋转引起的交叉轨道运动可以通过偏航和/或滚动来减少天线坐标 天线(22)(优选地通过例如通过使用反作用轮系统偏转和/或滚动整个卫星(10))以在整个轨道(12)(图4)中变化的适当角度。

    Spacecraft acquisition of orientation by scan of earth sensor field of view
    10.
    发明公开
    Spacecraft acquisition of orientation by scan of earth sensor field of view 失效
    Erfassung der Orientierung eines Raumfahrzeuges durch Abtastung des Sichtfeldes eines Endsensors

    公开(公告)号:EP1104896A1

    公开(公告)日:2001-06-06

    申请号:EP01200730.8

    申请日:1996-03-05

    IPC分类号: G05D1/08 B64G1/24 B64G1/36

    摘要: A spacecraft orientation procedure, in accordance with a first embodiment of the invention, is practiced with a sun sensor to bring the x (roll) axis of the spacecraft parallel to a ray of the sun, and with a gyro sensor and an earth sensor of the spacecraft in conjunction with one instruction provided either autonomously or by a ground tracking station regarding an orientation of a spacecraft reference plane to enable locating the earth by the earth sensor. Furthermore, in accordance with a second embodiment of the invention, the orientation is established without aid from the ground tracking station by use of at least one telemetry and command antenna having a continuous field of view, as measured in one plane, which is greater than a semicircle.' In the second embodiment, the orientation procedure provides for rotation of the spacecraft about the x axis for a scanning of the antenna to intercept command signals broadcast from the earth, thereby to locate the earth in a first reference plane. Rotation about the y (pitch) axis enables measurement of command signal strength for location of the earth in a second reference plane perpendicular to the first reference plane. Gyrocompassing establishes yaw in both embodiments of the invention.

    摘要翻译: 根据本发明的第一实施例的太空船取向程序用太阳传感器来实现,以使航天器的x(滚动)轴平行于太阳的光线,并且使用陀螺仪传感器和地球传感器 航天器结合一个指令自动提供或由地面跟踪站提供有关航天器参考平面的方位以使地球传感器能够定位地球的指令。 此外,根据本发明的第二实施例,通过使用至少一个具有在一个平面中测量的连续视场的遥测和命令天线,来自地面跟踪站的辅助建立方向,其大于 半圆形“。 在第二实施例中,定向过程提供了航天器围绕x轴的旋转,用于扫描天线以截取从地球广播的命令信号,从而将地球定位在第一参考平面中。 围绕y(俯仰)轴的旋转使得能够测量在与第一参考平面垂直的第二参考平面中地球的位置的命令信号强度。 陀螺仪在本发明的两个实施例中建立偏航。