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, 36(5): 609-611.
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, 36(5): 609-611.
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, 36(5): 609-611.
Citation: 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, 36(5): 609-611.

恒星日滤波的修正以及对高频GPS定位的影响研究

Modified Sidereal Filter and Its Effect on High-rate GPS Positioning

  • 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。

     

    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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