| 可拓评判方法在掩星定位及反演中的应用 |
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| 引用本文： | 闫金,李刚,武文雄.可拓评判方法在掩星定位及反演中的应用[J].大地测量与地球动力学,2012,32(Z1):124-126. |
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| 作者姓名： | 闫金 李刚 武文雄 |
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| 作者单位： | 甘肃省地质矿产勘查开发局测绘勘查院,兰州,730060 |
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| 摘 要： | 介绍可拓评判方法的原理以及在掩星定位及反演中的应用,并通过实际算例证明了不同高度角和几何分布对掩星卫星定位和反演精度的影响.试验结果表明,与常规方法相比,利用可拓评判方法选星后掩星定位,反演精度和稳定性均得到了显著提高.
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| 关 键 词： | GPS 掩星技术 定位 反演 加权几何精度因子 |
APPLICATION OF EXTENT-TECH TO OCCULTATION LOCATIONING AND INVERSION |
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| Yan Jin
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Li Gang
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Wu Wenxiong.APPLICATION OF EXTENT-TECH TO OCCULTATION LOCATIONING AND INVERSION[J].Journal of Geodesy and Geodynamics,2012,32(Z1):124-126. |
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| Authors: | Yan Jin Li Gang Wu Wenxiong |
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| Institution: | (Surveying and Mapping Institute of Geology and Mineral Resources Bureau of Gansu Province,Lanzhou 730060) |
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| Abstract: | This article introduces the principle of Extent-tech evaluation method and application to occultation locationing and inversion.The experiment proved that the different elevation angles and geometric distribution have influence on occultation satellite positioning and the accuracy of inversion.Compared with the conventional method,it shows that the occultation positionnning accuracy and stability of the inversion with this method has been significantly improved. |
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| Keywords: | GPS occulation technology positioning inversion weighted GDOP |
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