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21. 发明授权

US06456939B1 Micro inertial measurement unit 有权
标题翻译：微惯性测量单元
公开(公告)号：US06456939B1
公开(公告)日：2002-09-24
申请号：US09477151
申请日：2000-01-04
申请人： Hiram McCall , Ching-Fang Lin
发明人： Hiram McCall , Ching-Fang Lin
IPC分类号： G01C2126
CPC分类号： G01C19/5719
摘要： A micro inertial measurement unit, which is adapted to apply to output signals proportional to rotation and translational motion of a carrier, respectively from angular rate sensors and acceleration sensors, is employed with MEMS rate and acceleration sensors. Compared with a conventional IMU, the processing method utilizes a feedforward open-loop signal processing scheme to obtain highly accurate motion measurements by means of signal digitizing, temperature control and compensation, sensor error and misalignment calibrations, attitude updating, and damping control loops, and dramatically shrinks the size of mechanical and electronic hardware and power consumption, meanwhile, obtains highly accurate motion measurements.
摘要翻译：微惯性测量单元适用于分别来自角速度传感器和加速度传感器的与载波的旋转和平移运动成比例的输出信号，与MEMS速率和加速度传感器一起使用。与传统IMU相比，该处理方法利用前馈开环信号处理方案，通过信号数字化，温度控制和补偿，传感器误差和不对准校准，姿态更新和阻尼控制回路获得高精度运动测量，显着缩小了机电硬件的尺寸和功耗，同时获得了高精度的运动测量。

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