| 一种新型非线性滤波理论及其应用 |
| |
| 引用本文： | 吴江飞,雷辉,王世忠.一种新型非线性滤波理论及其应用[J].测绘工程,2008,17(6):16-19. |
| |
| 作者姓名： | 吴江飞 雷辉 王世忠 |
| |
| 作者单位： | 信息工程大学,测绘学院,河南,郑州450052;中国科学院国家授时中心,陕西,西安710600;81804部队,辽宁大连,116031 |
| |
| 基金项目： | 中国科学院知识创新工程重要方向项目
，
国家高技术研究发展计划(863计划)
|
| |
| 摘 要： | 研究一种新型的非线性滤波理论，即Unscented卡尔曼滤波（UKF），同时为了获得更高的计算效率和确保协方差阵的非负定性，研究了平方根UKF。将UKF和平方根UKF应用到星载GPS卫星定轨中，实际算例表明UKF和平方根UKF的性能要优于常用的推广卡尔曼滤波的性能。
|
| 关 键 词： | 非线性滤波 Unscented卡尔曼滤波 平方根Unscented卡尔曼滤波 定轨 |
A new nonlinear filter theory and its application |
| |
| WU Jiang-fei,LEI Hui,WANG Shi-zhong.A new nonlinear filter theory and its application[J].Engineering of Surveying and Mapping,2008,17(6):16-19. |
| |
| Authors: | WU Jiang-fei LEI Hui WANG Shi-zhong |
| |
| Institution: | WU Jiang-fei , LEI Hui, WANG Shi-zhong ( 1. Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450052, China; 2. National Time Service Center, Chinese Academy of Sciences, Xi＇an 710600, China; 3. 81804 Troops, Dalian 116031, China) |
| |
| Abstract: | A new nonlinear filter theory(the Unscented Kalman filter,UKF) is studied in this paper.At the same time,in order to obtain higher calculation efficiency and guarantee positive semi-definiteness of the state covariances,the square root Unscented Kalman filter is studied,and its algorithm is presented.Lastly,UKF and SR-UKF are used to determine the orbit of satellites equipped with GPS.And a practical example shows that the performance of the UKF and SR-UKF are superior to that of the EKF. |
| |
| Keywords: | nonlinear filter Unscented Kalman filter square root Unscented Kalman filter orbit determination |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
