| 恒星日滤波的修正以及对高频GPS定位的影响研究 |
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| 引用本文： | 殷海涛,甘卫军,肖根如. 恒星日滤波的修正以及对高频GPS定位的影响研究[J]. 武汉大学学报(信息科学版), 2011, 0(5): 609-611,616 |
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| 作者姓名： | 殷海涛 甘卫军 肖根如 |
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| 作者单位： | 中国地震局地质研究所地震动力学国家重点实验室;山东省地震局; |
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| 基金项目： | 地震动力学国家重点实验室开放研究基金资助项目(LED2008B07); 国家973计划资助项目(2008CB25700) |
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| 摘 要： | 对现有的恒星日滤波方法进行了修正,提出了利用站点获得的卫星星历分段计算卫星平均轨道周期的方法。实例结果表明,相比修正前的恒星日滤波,修正后的滤波可更有效地提高定位精度,坐标三分量(N、E、U)分别提高了4.5%、5.2%和6.2%,而且在0.001～0.08 Hz频率域上也可获得更好的效果。
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| 关 键 词： | 恒星日滤波 卫星轨道周期 高频GPS 谱分析 |
Modified Sidereal Filter and Its Effect on High-rate GPS Positioning |
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| YIN Haitao, GAN Weijun XIAO Genru. Modified Sidereal Filter and Its Effect on High-rate GPS Positioning[J]. Geomatics and Information Science of Wuhan University, 2011, 0(5): 609-611,616 |
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| Authors: | YIN Haitao GAN Weijun XIAO Genru |
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| Affiliation: | YIN Haitao1,2 GAN Weijun1 XIAO Genru1(1 Institute of Geology,CEA,Qijiahuozi,Deshengmenwai,Beijing 100029,China)(2 Earthquake Administration of Shandong Province,20 East Wenhua Road,Jinan 250014,China) |
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| Abstract: | The normal sidereal filter is modified,and a way to calculate the mean satellite orbit period by dividing broadcast ephemeris is provided,which is checked through comparison with examples.From the results we can see that,compared to the pre-revision sidereal filter,the modified one can improve the positioning accuracy more efficiently,the accuracy of NEU directions are increased 4.5%,5.2% and 6.2% respectively,and it has better performance between frequencies of 0.001-0.08 Hz. |
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| Keywords: | sidereal filter period of satellite orbit high-rate GPS spectral analysis |
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