有色随机游动噪声模型下基于EM算法的同步卫星定轨
For the geostationary satellite of more than 30000 kilometers over the earth, its motion equation can be thought ofas accurate because the impact of the figure and irregularity of the earth on the satellite can be neglected. When residualsshow non-Gaussian, the factor can be attributed to the inaccuracy of the observational equation due to ionosphere, troposphere,instrumental errors and/or the others. This paper proposes the colored random walk model as the compensation to theobservational equation in the presence of systematical errors. The corresponding EM batch processing algorithm isconstructed to find the state parameters and systematical en ors. The numericai result shows that the compensation model isfeasible for improving state parameters; the constructed EM algorithm is efficient.
同步卫星 轨道设计 有色随机游动噪声模型 EM算法
彭军还 陈磊 李淑慧 冯初刚
中国地质大学(北京),测绘工程系 中科院上海天文台
国内会议
北京
中文
789-800
2010-05-19（万方平台首次上网日期，不代表论文的发表时间）