| 一种近地航天器脉冲星地固系动力学定轨方法 |
| |
| 引用本文： | 黄良伟,帅平,张新源,林晴晴.一种近地航天器脉冲星地固系动力学定轨方法[J].宇航学报,2016,37(8):895-900. |
| |
| 作者姓名： | 黄良伟 帅平 张新源 林晴晴 |
| |
| 作者单位： | 中国空间技术研究院钱学森空间技术实验室，北京100094 |
| |
| 基金项目： | 国家自然科学基金（61403391, 41304006） |
| |
| 摘 要： | 为改善近地航天器脉冲星导航的定轨精度，设计一种地固系动力学定轨方法。该方法结合了更精确的地球引力场模型，在求地球引力势梯度基础上引入惯性力，建立了地固系下轨道动力学方程；并结合脉冲相位量测，使用扩展卡尔曼滤波实现航天器轨道参数实时估计。此方法可以降低动力学方程非线性度，尤其适用于地球静止轨道卫星。通过数学仿真校验了新方法的有效性与精度。
|
| 关 键 词： | X射线脉冲星 动力学定轨 地固系 地球引力势 |
| 收稿时间： | 2015-11-01 |
A Method of Pulsar Based Dynamic Orbit Determination in the Earth Fixed Reference Frame for Near Earth Spacecraft |
| |
| HUANG Liang wei,SHUAI Ping,ZHANG Xin yuan,LIN Qing qing.A Method of Pulsar Based Dynamic Orbit Determination in the Earth Fixed Reference Frame for Near Earth Spacecraft[J].Journal of Astronautics,2016,37(8):895-900. |
| |
| Authors: | HUANG Liang wei SHUAI Ping ZHANG Xin yuan LIN Qing qing |
| |
| Affiliation: | Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, China |
| |
| Abstract: | To improve the navigation accuracy by properly incorporating the Earth gravity model in the near-Earth spacecraft pulsar-based navigation, this paper proposes the method of dynamic orbit determination in the Earth-fixed reference frame. Based on the geopotential and the inertial force model, the obit dynamics equation is constructed in the Earth-fixed reference frame. The pulse phase measurement is used in the extended Kalman filter for real-time estimation. The proposed method decreases the nonlinearity of the dynamics equation, which is especially applicable for the geostationary satellites. Numerical simulation validates the effectiveness and the accuracy of this method. |
| |
| Keywords: | X-ray pulsar Dynamic orbit determination Earth-fixed reference frame Geopotential |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《宇航学报》浏览原始摘要信息 |
|
点击此处可从《宇航学报》下载全文 |
