Error Analysis and Accuracy Evaluation of a Satellite’s Star Sensor
摘要
Star sensor is a high precision attitude measurement device widely used in space vehicles, and accuracy calibration is an important part to ensure high precision measurement. In this paper, the error of the split micro star sensor used by a civilian satellite is analyzed, and quantitatively evaluates by the method of polynomial fitting and optical axis angle. The on orbit test results show that the attitude determination accuracy of the single probe star sensor is better than 1.7″ in X-axis/Y-axis and 15″ in Z-axis.