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航天飞机星光惯性基准系统可在飞行期间提供轨道器速度与姿态数据。系统由惯性测量装置、星跟踪器、导航设备底板与人工光学对准装置组成。轨道器计算机控制系统各部分的工作:完成必要的对准、速度与姿态计算,并用以与乘员联系。本文对设计要求、硬件工作情况以及星对准与惯性测量装置对准与校准技术作了讨论,并根据飞行试验结果着重讨论了对准精度、星跟踪器性能、陀螺与加速度表精度。同时也对系统今后改进与发展的可能性作了简述。
Spacecraft Starlight inertial reference system can provide orbiter velocity and attitude data during flight. The system consists of an inertial measurement device, a star tracker, a navigation equipment backplane, and an artificial optical alignment device. Orbiter computer control system in various parts of the work: to complete the necessary alignment, speed and attitude calculation, and used to contact with the crew. This paper discusses the design requirements, hardware work and the alignment and calibration techniques of star alignment and inertial measurement devices. According to the flight test results, the alignment accuracy, star tracker performance, gyro and accelerometer accuracy are mainly discussed. At the same time, the possibility of system improvement and development in the future is also briefly described.