| 抗差估计在多站多星卡尔曼滤波精密定轨中的应用 |
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| 引用本文： | 祖安然,宋力杰,王琰.抗差估计在多站多星卡尔曼滤波精密定轨中的应用[J].测绘工程,2015(4):16-19. |
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| 作者姓名： | 祖安然 宋力杰 王琰 |
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| 作者单位： | 信息工程大学 地理空间信息学院,河南 郑州,450000 |
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| 摘 要： | 针对在多站多星卡尔曼滤波定轨中,粗差探测判断标准选择不合适时会影响卡尔曼滤波解精度的问题,采用放宽粗差探测阈值并在滤波阶段采用抗差估计的方法来控制滤波的精度。利用IGS站和BD站的观测数据,分别计算了GPS、BD卫星单天弧度的定轨结果,并与IGS精密星历、武大精密星历作比较。结果表明,利用抗差卡尔曼滤波方法轨道精度得到了提高。
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| 关 键 词： | 卡尔曼滤波 多站多星 定轨 抗差估计 BD |
Application of robust estimation in precision orbit determination by using kalman filtering with multi-stations and multi-satellites |
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| ZU An-ran,SONG Li-jie,WANG Yan.Application of robust estimation in precision orbit determination by using kalman filtering with multi-stations and multi-satellites[J].Engineering of Surveying and Mapping,2015(4):16-19. |
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| Authors: | ZU An-ran SONG Li-jie WANG Yan |
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| Abstract: | As for the Kalman filtering precision orbit determination with multi-stations and multi-satellites , the inappropriate choice of outlier detection criterion will affect Kalman filtering precision .The relaxation of the outlier detection threshold and the robust estimation method in filtering stage shall be used to control the filter precision .Using GPS and BD station observation data ,GPS and BD satellite orbit results of single day radian are calculated ,compared with the precise ephemeris ,Wuda precise ephemeris .The results show that the precision of orbit with robust Kalman filter method is improved . |
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| Keywords: | Kalman filtering orbit determination robust estimation BD |
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