| 基于广义卡尔曼滤波的伪距组合GPS/INS导航 |
| |
| 引用本文： | 刘海颖,王惠南. 基于广义卡尔曼滤波的伪距组合GPS/INS导航[J]. 航天控制, 2004, 22(4): 52-56 |
| |
| 作者姓名： | 刘海颖 王惠南 |
| |
| 作者单位： | 南京航空航天大学,南京,210016;南京航空航天大学,南京,210016 |
| |
| 基金项目： | 教育部博士点基金项目 (2 0 0 30 2 870 0 5 ) |
| |
| 摘 要： | 提出了一种利用广义卡尔曼滤波进行GPS/INS组合导航的技术 ,同时给出了一种最优选星算法。采用间接的反馈校正设置 ,直接利用伪距数据和不受噪声污染的星历数据。利用该方法 ,组合导航精度高 ,在导航过程中若丢失GPS信息 ,短时间内单纯INS的导航精度仍能保持。恢复GPS信号后组合系统继续正常工作。
|
| 关 键 词： | 组合导航 广义卡尔曼滤波 INS GPS 选星算法 |
| 文章编号： | 1006-3242(2004)04-0052-05 |
| 修稿时间： | 2004-03-08 |
The GPS/INS Pseudorange Integrated Navigation Based on Extend Kalman Filtering |
| |
| Liu Haiying Wang Huinan Nanjing University of Aeronautics and Astronautics,Nanjing. The GPS/INS Pseudorange Integrated Navigation Based on Extend Kalman Filtering[J]. Aerospace Control, 2004, 22(4): 52-56 |
| |
| Authors: | Liu Haiying Wang Huinan Nanjing University of Aeronautics Astronautics Nanjing |
| |
| Affiliation: | Liu Haiying Wang Huinan Nanjing University of Aeronautics and Astronautics,Nanjing 210016 |
| |
| Abstract: | This paper presents an extend Kalman filt er ing (EKF) technique for GPS/INS integrated navig ation.At the same time it gives an efficiency method to find the optimal combina tion of the satellites that examined. It uses indirect feedback configuration w hich based on pseudorange data and ephemeris without being affected by noise. T he integrated navigation has higher accuracy using this algorithm, and if GPS message is interrupted abruptly in the process of integrated navig ation, the pure INS can maintain a relative high navigation accu racy for a certain time .When GPS message is returned to normal receiving , the integrated GPS/INS navigation will resume normal working. |
| |
| Keywords: | Subject terms Integrated navigation Extend Kalman filtering INS GPS Select satellites algorithm |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
