高分七号卫星姿轨控测试数据一致性比对平台设计

Attitude and Orbit Control Test Data Consistency Comparison Platform for GF-7 Satellite

针对高分七号卫星姿轨控测试数据的特点,提出了一种姿轨控测试数据一致性比对平台的设计思路和实现方法,采用模块化设计构建了软件架构,梳理和分解了数据分析流程,重点介绍了姿轨控测试数据状态控制和低频数据变化趋势比对等关键技术。引入姿轨控测试数据状态控制提升了数据分析的可信性,利用低频数据变化趋势比对技术可以捕捉低频数据趋势的改变。通过高分七号卫星的测试验证,该平台能够在姿轨控测试数据发生趋势性变化的早期发现问题,有效地提高了一致性比对的强度,可为其他卫星测试工程任务提供参考。

According to the characteristics of attitude and orbit control test data for GF-7 satellite,this paper presents a design idea and implementation method of attitude and orbit control test data consistency comparison platform.Taking Matlab software as the computing platform,the software architecture is constructed with modular design,and the data analysis process is sorted out and decomposed.The key technologies of attitude and orbit control test data state control and low frequency data change trend ratio equivalence are mainly introduced.The introduction of attitude and orbit control test data state control improves the credibility of data analysis,using low-frequency data change trend comparison technology can capture the change of low-frequency data trend.Through the test of GF-7 satellite,it is proved that the platform can locate the problem in the early period when the attitude and orbit control test data has a trend change,and effectively improve the intensity of consistency comparison,which can provide a reference for other test project.