| 基于SINS辅助的GPS完善性监测方法 |
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| 引用本文： | 耿延睿,张伟伟,崔中兴.基于SINS辅助的GPS完善性监测方法[J].北京航空航天大学学报,2001,27(2):164-166. |
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| 作者姓名： | 耿延睿 张伟伟 崔中兴 |
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| 作者单位： | 北京航空航天大学 自动控制系 |
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| 摘 要： | 以车比雪夫大数定律为基础,研究基于捷联惯导系统(SINS)的全球卫星定位系统(GPS)完善性监测方法.采用一个卡尔曼滤波器滤波,对卫星伪距故障幅值进行估计并判断哪颗卫星出现故障.最后给出了卫星出现阶跃故障的仿真实例.仿真结果表明,该方法能够及时准确地检测出GPS信号故障,计算量较低,适合于工程上应用.
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| 关 键 词： | 捷联式惯性导航 卫星导航 故障检测 |
| 文章编号： | 1001-5965(2001)02-0164-03 |
| 收稿时间： | 2000-03-14 |
| 修稿时间： | 2000年3月14日 |
New Approach to GPS Integrity Monitoring Based on SINS |
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| GENG Yan-rui,ZHANG Wei-wei,CUI Zhong-xing.New Approach to GPS Integrity Monitoring Based on SINS[J].Journal of Beijing University of Aeronautics and Astronautics,2001,27(2):164-166. |
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| Authors: | GENG Yan-rui ZHANG Wei-wei CUI Zhong-xing |
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| Institution: | Beijing University of Aeronautics and Astronautics, Dept. of Automatic Control |
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| Abstract: | A new approach of GPS integrity based on SINS is studied by means of the Chebyshev-s law of great numbers. The magnitude of pseudoranges can be estimated and that which satellite is in trouble can be determined by using only a Kalman filter. A example is given in the case of step-type pseudorange error. Thesimulation result proves that the new approach is very practical and efficient and the computation load is lower. |
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| Keywords: | strapdown inertial navigation satellite navigation fault detection |
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