| 单通道测量条件下DORIS实时定轨方法研究 |
| |
| 引用本文： | 刘俊宏,谷德峰,赖育网,易东云.单通道测量条件下DORIS实时定轨方法研究[J].飞行器测控学报,2011(5):50-54. |
| |
| 作者姓名： | 刘俊宏 谷德峰 赖育网 易东云 |
| |
| 作者单位： | 国防科学技术大学理学院; |
| |
| 基金项目： | 国家自然科学基金(61002033) |
| |
| 摘 要： | 重点研究了单通道测量条件下的DORIS实时定轨方法。推导了实时定轨的扩展卡尔曼滤波（EKF）公式,仿真生成了47个测站的观测数据文件,分析了单通道测量条件下EKF滤波器的收敛性及其精度。仿真实验表明,仅有单个测站的观测数据时,滤波难以收敛;但在不同测站的观测数据切换时,滤波收敛效果显著。对于轨道高度为800km的卫星,初轨各轴位置误差小于500m、速度误差小于5m/s时,滤波平均收敛时间约55min;若各项系统误差能准确建模,实时轨道的位置精度将优于40cm。
|
| 关 键 词： | DORIS 平均径向速度 单通道 扩展卡尔曼滤波 实时定轨 |
DORIS Real-time Orbit Determination Method under the Condition of a Single Channel |
| |
| LIU Junhong,GU Defeng,LAI Yuwang,YI Dongyun.DORIS Real-time Orbit Determination Method under the Condition of a Single Channel[J].Journal of Spacecraft TT&C Technology,2011(5):50-54. |
| |
| Authors: | LIU Junhong GU Defeng LAI Yuwang YI Dongyun |
| |
| Affiliation: | LIU Junhong,GU Defeng,LAI Yuwang,YI Dongyun (College of Science,National University of Defense Technology,Changsha 410073) |
| |
| Abstract: | DORIS is an advanced ground-based satellite orbit tracking system.This paper studies DORIS real-time orbit determination method under the condition of a single channel.Extended Kalman Filter formulations are derived for real-time orbit determination.Observation data files of 47 permanent beacons are generated.The convergence and accuracy of the filter is analyzed.Simulation and experiments show that,with a single channel,it is difficult for the filter to converge with the measurements of only one beacon whi... |
| |
| Keywords: | DORIS Average Range Rate Single Channel Extended Kalman Filter(EKF) Real-Time Orbit Determination |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《飞行器测控学报》浏览原始摘要信息 |
|
点击此处可从《飞行器测控学报》下载全文 |
|
