| 伪卫星/惯性组合导航的非线性补偿 |
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| 引用本文： | 王玮,刘宗玉.伪卫星/惯性组合导航的非线性补偿[J].北京航空航天大学学报,2009,35(4):514-518. |
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| 作者姓名： | 王玮 刘宗玉 |
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| 作者单位： | 北京航空航天大学仪器科学与光电工程学院,北京,100191;北京控制工程研究所,北京,100091 |
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| 基金项目： | 国家自然科学基金资助项目(60804056) |
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| 摘 要： | 伪卫星具有抗干扰能力强和布置灵活机动的特点,在增强卫星系统和独立组网为用户提供更高精度导航定位信息方面具有广阔的应用前景.研究了一种伪卫星/惯性组合导航的非线性补偿算法.由于伪卫星与用户的距离比卫星近得多,其非线性量测的影响也严重得多.采用二次项修正一定程度上弥补了传统线性化方法存在的模型误差大、滤波效果差甚至发散的问题.为避免求解非线性方程的困难使用了两步估计方法,大大降低了算法的复杂度.仿真结果表明,该算法可以显著提高伪卫星/惯性组合导航系统的性能,具有很高的实用性.
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| 关 键 词： | 伪卫星 惯性导航系统 组合导航 非线性补偿 |
| 收稿时间： | 2008-06-06 |
Nonliearity compensation for pseudolite/INS integrated navigation |
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| Wang Wei,Liu zongyu.Nonliearity compensation for pseudolite/INS integrated navigation[J].Journal of Beijing University of Aeronautics and Astronautics,2009,35(4):514-518. |
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| Authors: | Wang Wei Liu zongyu |
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| Institution: | 1. School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
2. Beijing Institute of Control Engineering, Beijing 100091, China |
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| Abstract: | Pseudolite-based positioning systems have a bright outlook in providing users higher precision navigation information due to the stronger anti-jamming capability and flexibility compared with orbiting satellites.A nonliearity compensation algorithm was studied for the pseudolite/inertial navigation system(INS) integrated navigation.The influence of pseudolite measurement nonlinearity is more severe than that of satellites since the distances between pseudolites and users are much closer.By utilizing the sec... |
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| Keywords: | pseudolites inertial navigation system integrated navigation nonliearity compensation |
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