复杂卫星姿态确定精度反演与评估问题研究

项目名称： 复杂卫星姿态确定精度反演与评估问题研究

项目编号： No.61304119

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 自动化技术、计算机技术

项目作者： 王炯琦

作者单位： 中国人民解放军国防科学技术大学

项目金额： 23万元

中文摘要： 本项目以高分辨率成像对地观测卫星为背景，研究复杂卫星姿态确定精度反演与评估的理论和方法。以往复杂卫星姿态确定的研究工作主要集中在提高姿态敏感器的测量精度、设计改进的或新型的姿态确定算法以适应不同的工作环境。本项目在前期对复杂卫星姿态确定系统误差分析、模型构建及最优估计方法设计等"正问题"研究的基础上，开展姿态确定的"反问题"研究。具体内容包括：基于试验优化设计和阈值分析方法，明确影响复杂卫星姿态确定精度的主成分因素；基于姿态确定滤波算法，建立各主成分因素的精度影响模型，完成模型参数辨识；通过试验优化设计，结合多元非线性回归分析，建立姿态确定精度与主成分因素之间的综合精度响应函数，并在给定姿态确定精度指标下，求解各主成分因素的边界条件；通过理论分析与半物理仿真试验，完成姿态确定精度反演理论与方法的评估。为复杂卫星高精度姿态测量设计与姿态确定方案优化提供反馈及技术支撑。

中文关键词： 复杂卫星；姿态确定；精度反演；试验设计；响应函数

英文摘要： The background of this project is the high-resolution-image of the earth observation satellite. The research focuses on the theories and approaches for the precision inversion and evaluation of complicated satellite's attitude determination. The traditional and previous research work for complicated satellite's attitude determination is restricted in enhancing the precision of sensors' attitude measurement, designing the improved or novel algorithm for attitude determination to adapt different working environments. Based on our previous research work for the "forward problem" of complicated satellite's attitude determination, including system error analysis, model construction and optimal estimation design, this project begins to research the "inverse problem" of complicated satellite's attitude determination. Specific contents are included as follows: the main error factors called the principal component factors for attitude determination are deduced with the experiment optimum design and the threshold analysis method at first. And then the precision influence model for each principal component factor is constructed based on attitude filter algorithm, besides, the model parameters are identified. Moreover, the synthetized precison response function is presented with experiment design and multiple nonlinear regr

英文关键词： Complicated Satellite；Attitude Determination；Precision Inversion；Experiment Design；Response Function