Method and a device for aligning a space vehicle, particularly a
geostationary satellite, in a reference direction
    1.
    发明授权
    Method and a device for aligning a space vehicle, particularly a geostationary satellite, in a reference direction 失效
    用于对准空间车辆的方法和装置,特别是地球卫星,参考方向

    公开(公告)号:US5132910A

    公开(公告)日:1992-07-21

    申请号:US550870

    申请日:1990-07-11

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

    CPC分类号: G05D1/0883 B64G1/36 B64G1/363

    摘要: A method and arrangement for aligning a space vehicle with respect to a reference object is disclosed. A measuring direction is obtained by determining the angular orientation direction of the space vehicle with respect to the reference object and subsequently the space vehicle is aligned by means of actuators such that the measuring direction corresponds to a reference direction on the space vehicle. The actuators are driven by control signals which are derived from the measuring direction to cause control torques on the space vehicle. The orientation of the space vehicle and reference object is determined only with respect to a single measuring direction along a main axis of a direction sensor. The following steps are taken if the measuring direction does not correspond to the reference direction on the space vehicle:a) the space vehicle is rotated around the reference direction on the space vehicle,b) controlling a fault component of the direction of the reference object situated in the measuring direction by locking on a first control torque perpendicularly with respect to the reference direction on the space vehicle, andc) controlling the unmeasurable component of the direction of the reference object situated perpendicularly with respect to the measuring direction by locking on a second control torque perpendicularly with respect to the reference direction and perpendicularly with respect to the first steering moment.

    摘要翻译: 公开了一种用于使空间车辆相对于参考物体对准的方法和装置。 通过确定空间车辆相对于参考物体的角度定向方向,随后空间飞行器通过致动器对准,使得测量方向对应于空间车辆上的参考方向,来获得测量方向。 致动器由从测量方向导出的控制信号驱动,以产生空间车辆上的控制扭矩。 仅沿着方向传感器的主轴的单个测量方向确定空间车辆和参考对象的方位。 如果测量方向与空间飞行器上的参考方向不对应,则采取以下步骤:a)空间车辆绕空中飞行器的参考方向旋转,b)控制参考物体的方向的故障分量 通过锁定垂直于空间车辆上的参考方向的第一控制扭矩而位于测量方向,以及c)通过锁定在相对于测量方向垂直定位的基准物体的方向上的不可测量分量 第二控制扭矩相对于参考方向垂直并且相对于第一转向力矩垂直。

    Method for calibrating the gyros of a 3-axis stabilized satellite
    2.
    发明授权
    Method for calibrating the gyros of a 3-axis stabilized satellite 失效
    用于校准三轴稳定卫星的陀螺仪的方法

    公开(公告)号:US4884771A

    公开(公告)日:1989-12-05

    申请号:US258024

    申请日:1988-10-14

    CPC分类号: B64G1/288 B64G1/36 G01C25/005

    摘要: This method serves for calibrating gyros forming part of the attitude control system of a satellite stabilized in three axes and which have an unknown drift. A two-axis sensor measuring the direction of a radiating reference object in the coordinate system x, y, z fixed with respect to the satellite is used. Two reference attitudes each different with respect to the reference object are commanded to the satellite in the course of two consecutive time intervals spaced from each other. The values measured by the sensor representing the respective actual direction of the reference object are recorded at the start and at the end of the time intervals. The respective time integrals of the gyro output signals are computed during the time intervals, which represent the gyro drift plus the respective instantaneous satellite deviation from the commanded reference attitude. Finally the gyro drift is determined from these time integrals and the values measured by the sensor.

    摘要翻译: 该方法用于校准形成三轴稳定卫星的姿态控制系统的一部分并具有未知漂移的陀螺仪。 使用测量相对于卫星固定的坐标系x,y,z中的辐射参考物体的方向的两轴传感器。 在相互间隔两个连续的时间间隔的过程中,对卫星指令相对于参考对象各不相同的两个参考姿态。 在时间间隔的开始和结束处记录由传感器测量的表示参考对象的实际方向的值。 陀螺仪输出信号的时间积分在时间间隔期间被计算,这表示陀螺仪漂移加上相应的与指令参考姿态的瞬时卫星偏差。 最后,从这些时间积分和传感器测量的值确定陀螺仪漂移。

    Method of sun and earth acquisition for three axis stabilized satellites
equipped with acquisition sensors
    3.
    发明授权
    Method of sun and earth acquisition for three axis stabilized satellites equipped with acquisition sensors 失效
    配备采集传感器的三轴稳定卫星的太阳和地球采集方法

    公开(公告)号:US4358076A

    公开(公告)日:1982-11-09

    申请号:US190444

    申请日:1980-09-24

    摘要: A method of sun and earth acquisition for satellites which are stabilized in three dimensions and are equipped with acquisition sensors is provided. The method enables the acquisition of the earth and sun to be concluded as quickly as possible. The method includes a series of cumulative or alternative steps for changing the attitude of the satellite relative to the sun. These attitude changes are governed by a simple set of control equations. An arrangement for effecting the method is also provided.

    摘要翻译: 提供了一种三维稳定并配有采集传感器的用于卫星的太阳和地球采集方法。 该方法能够尽可能快地得出地球和太阳的采集。 该方法包括一系列用于改变卫星相对于太阳的态度的累积或替代步骤。 这些态度变化由一组简单的控制方程组成。 还提供了一种用于实现该方法的装置。