| 磁罗经/GPS系统中调频高斯小波变换的应用 |
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| 引用本文： | 徐金华,许江宁,朱涛,边少锋.磁罗经/GPS系统中调频高斯小波变换的应用[J].测试技术学报,2006,20(2):138-143. |
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| 作者姓名： | 徐金华 许江宁 朱涛 边少锋 |
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| 作者单位： | 海军工程大学,电气与信息工程学院,湖北,武汉,430033 |
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| 摘 要： | 提出了一种基于调频高斯小波变换的GPS软故障诊断算法.该算法可以对GPS失锁、方差奇异等软故障进行在线检测.以HMR3000磁罗经和BeeLine GPS实际系统跑车试验数据显示,利用调频高斯小波变换方法后,系统航向可用性从原来的72%提高到了100%;系统的误差减小到原来的60%.因此,调频高斯小波变换方法有效地解决了磁罗经/GPS中在线软故障检测的难题.
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| 关 键 词： | GPS 磁罗经 组合导航系统 调频高斯小波变换 容错算法 |
| 文章编号： | 1671-7449（2006）02-0138-06 |
| 收稿时间： | 2005-03-29 |
| 修稿时间： | 2005年3月29日 |
Application of Modulated Gaussian Wavelet Transformation to the Magnetic Compass/GPS System |
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| XU Jin-hua,XU Jiang-ning,ZHU Tao,BIAN Shao-feng.Application of Modulated Gaussian Wavelet Transformation to the Magnetic Compass/GPS System[J].Journal of Test and Measurement Techol,2006,20(2):138-143. |
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| Authors: | XU Jin-hua XU Jiang-ning ZHU Tao BIAN Shao-feng |
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| Abstract: | An online soft-fault detecting method for GPS based on modulated Gaussian wavelet transform(MGWT)is presented which can perform online soft-fault detection such as BeeLine GPS losing lock,dispersion singularity,etc.At last,a practical system with a magnetic compass HMR3000 and a BeeLine GPS is tested on the vehicle by the method.Experiment results show that the heading reliability of the system is improved from 72% to 100% and that the system error decreases to 60% of the original error.The key problem in the magnetic compass/GPS system is effectively solved with the method of MGWT. |
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| Keywords: | GPS magnetic compass integrated navigation system modulated Gaussian wavelet transformation fault tolerance algorithm |
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