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首页> 外文会议>International Technical Meeting of The Institute of Navigation >Manual Optical Attitude Re-Initialization for a Crew Vehicle in Space
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Manual Optical Attitude Re-Initialization for a Crew Vehicle in Space

机译：手动光学姿态重新初始化空间中的车辆

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This work explores a manual apparatus for initializing a spacecraft's attitude. Such a system requires the solution to the lost-in-space problem. By observing a sequence of stars with a scope and using an inertial measurement unit (IMU) to measure the device's rotation between these sightings, it is possible to estimate the attitude through one of many solutions to the Wahba problem. Because the observations are mapped to a common frame by the IMU, the time between measurements is a major driver of system performance. Reliable star sightings will require longer integration times, and thus will introduce noise. A Monte Carlo simulation was performed to test the proposed method's sensitivity to noise. Finally, a prototype Manual Optical Attitude Initialization (MOAR) device was created that uses a low-cost MEMS IMU and a rifle scope to physically check the proposed methods.
机译：这项工作探索了一种用于初始化宇宙飞船态度的手动装置。这样的系统要求解决空间丢失的问题。通过观察具有范围的恒星和使用惯性测量单元（IMU）来测量这些目击之间的设备的旋转，可以通过对WahBA问题的许多解决方案中的一个来估计姿态。由于观察结果被IMU映射到公共帧，所以测量之间的时间是系统性能的主要驱动因素。可靠的明星瞄准需要更长的集成时间，因此会引入噪音。进行了蒙特卡罗模拟以测试所提出的方法对噪音的敏感性。最后，创建了使用低成本MEMS IMU和步枪范围来物理检查所提出的方法的原型手动光学姿态初始化（MoAR）设备。

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