关键词: 自旋稳定, 几何定姿, 误差分析

Abstract:

The geometry attitude calculation is the basic method of spin-stabilized satellites,but suffers poor calculation accuracy in attitude determination in the actual engineering task.A geometry attitude calculation method using different type of measurement is given systematically.The limiting factor,the error sensitive characteristics,and service conditions are analyzed.Then some true metrical data of an FY meteorological satellite are used to analyze the error reason.And methods for improving the accuracy are proposed.The analysis result offers references in the analysis of spin-stabilized satellites' attitude determination and the improvement of the accuracy of afterwards attitude determination.

Key words: spin stabilized;geometry attitude determination;error analysis