| GLOBK软件中测站坐标先验约束设置探讨 |
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| 引用本文： | 田建波,刘新江,陈勤勤.GLOBK软件中测站坐标先验约束设置探讨[J].海洋测绘,2013,33(1):49-52. |
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| 作者姓名： | 田建波 刘新江 陈勤勤 |
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| 作者单位： | 61365部队 |
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| 摘 要： | GLOBK软件采用卡尔曼滤波算法对基线解进行网平差,计算之前要对参考站的先验坐标施加适当的约束。使用我国大陆地区8个IGS站的相关数据,讨论了参考站先验坐标施加不同约束时对未知站坐标的影响,并对ITRF2008中各站坐标和速率的相互融洽度进行了分析,结果表明X、Y、Z三方向均约束在0.003～0.010m之间,解算质量较好。GLOBK在定义参考框架时能够自动剔除质量不好的参考站,平差时可以适当多选IGS站作为参考站。
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| 关 键 词： | GPS测量 GLOBK 卡尔曼滤波 ITRF2008 |
Research on Setting Apriori Constraints of Station Coordinates in GLOBK |
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| TIAN Jianbo,LIU Xinjiang,CHEN Qinqin.Research on Setting Apriori Constraints of Station Coordinates in GLOBK[J].Hydrographic Surveying and Charting,2013,33(1):49-52. |
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| Authors: | TIAN Jianbo LIU Xinjiang CHEN Qinqin |
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| Institution: | 61365部队,天津,300140 |
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| Abstract: | GLOBK is a Kalman filter to adjust baseline solutions in a network. Before calculation, appropriate constraints should be imposed on the apriori coordinates of reference sites. Applying correlative data of 8 IGS stations in mainland China, influences of the different constraints on the unknown sites＇ coordinates and the harmony of those stations in ITRF2008 were researched. The results show when the constraints of reference sites apriori coordinates in three directions are between 0. 003m to 0. 010re,the resolution quality is better. GLOBK can automatically eliminate those worse reference sites in defining a reference frame, so some more reference sites＇ can be selected in adjustment. |
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| Keywords: | GPS survey GLOBK Kalman filter ITRF2008 |
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