| 引用本文: | 陈 良,李洪涛,吴 杰.捷联惯导空中粗对准方法.[J].国防科技大学学报,2012,34(2):130-133.[点击复制] |
| CHEN Liang,LI Hongtao,WU Jie.Study on coarse alignment method of airborne SINS[J].Journal of National University of Defense Technology,2012,34(2):130-133[点击复制] |
|
| |
|
|
| 本文已被：浏览 7122次 下载 6408次 |
| 捷联惯导空中粗对准方法 |
| 陈 良1, 李洪涛2, 吴 杰1 |
|
(1.国防科技大学 航天与材料工程学院，湖南 长沙 410073;2.解放军卫星导航定位总站，北京 100094)
|
| 摘要: |
| 针对飞机进近着陆对捷联惯导系统空中重新对准功能的需求，提出一种基于四元数的解析粗对准方法，该方法对飞行动态和飞行平稳性没有要求。推导了利用GNSS测量的速度信息和惯导系统的输出信息对载体姿态进行解算的方法，对精度的影响因素进行了分析。仿真结果表明，该方法可在较宽的动态范围内保持较高的对准精度，计算量较小，速度较快，满足空中粗对准对速度和精度的要求。 |
| 关键词: 捷联惯导 卫星导航系统 初始对准 组合导航 四元数 |
| DOI： |
| 投稿日期：2012-02-08 |
| 基金项目:湖南省优秀研究生创新资助项目(CX2011B005) |
|
| Study on coarse alignment method of airborne SINS |
| CHEN Liang1, LI Hongtao2, WU Jie1 |
|
(1.College of Aerospace and Materials Engineering, National University of Defense Technology, Changsha 410073，China;2.PLA Satellite Navigation and Positioning Station, Beijing 100094, China)
|
| Abstract: |
| An analytical method of coarse alignment in flight based on quaternion which can be used in landing system was presented without any restrictive condition of dynamic process and flight stability. The formula of the coarse alignment which can solve the attitude of the airplane with the velocity measured by GNSS and specific force measured by inertial measurement unit were derived. The factors affecting the alignment performance were analyzed. The simulation results show that the method can be carried out in wide dynamic range with high accuracy, high speed and low computer complexity and can satisfy the requirement of speed and .precision of flight coarse alignment. |
| Keywords: SINS GNSS initial alignment quaternion integrated navigation |
|
|
