Thruster control of yaw without yaw measurements
    1.
    发明授权
    Thruster control of yaw without yaw measurements 失效
    没有偏航测量的偏航的推进器控制

    公开(公告)号:US5752675A

    公开(公告)日:1998-05-19

    申请号:US498657

    申请日:1995-07-03

    摘要: An automatic, on-board system for orbiting spacecraft that controls yaw excursions caused by solar torques and thruster firings, which system combines inputs indicative of roll and yaw momentum increases and inputs containing information comprising the unbiased roll error from the earth sensor, yaw momentum measured from the wheel speeds, and commanded yaw momentum output from the wheel controller, and produces therefrom output signals indicative of the yaw estimate and the yaw momentum estimate. These output signals are combined and processed in a controller with a mimimum yaw error and roll thrust yaw controller gain and a miminmum yaw error and roll thrust yaw momentum controller gain, and a signal is produced therefrom for commanding roll thruster firings to change roll momentum, and, in turn, control yaw attitude and yaw excursions.

    摘要翻译: 一种用于轨道运行的自动飞行器系统,用于控制由太阳能转矩和推进器启动引起的偏航偏移,该系统组合了指示滚动和横摆动量增加的输入以及包含来自地球传感器的无偏差滚动误差的信息的输入,测量的横摆动量 从车轮速度和从车轮控制器输出的指挥的横摆动量,并从其产生指示偏航估计和偏航动量估计的输出信号。 这些输出信号在控制器中被组合和处理,其具有最大偏航误差和侧倾推力偏航控制器增益以及模拟偏航误差和侧倾推力偏航动量控制器增益,并且由此产生用于指示辊推进器启动以改变滚动动量的信号, 并且进而控制偏航姿态和偏航偏移。