| 广义延拓法在似大地水准面模型精化中的应用 |
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| 引用本文： | 徐淑春,吉长东,冯磊.广义延拓法在似大地水准面模型精化中的应用[J].辽宁工程技术大学学报(自然科学版),2011,30(2):209-211. |
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| 作者姓名： | 徐淑春 吉长东 冯磊 |
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| 作者单位： | 1. 山东省日照市岚山区城乡建设勘察测绘院,山东,日照,276807
2. 辽宁工程技术大学,测绘与地理科学学院,辽宁,阜新,123000 |
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| 基金项目： | 辽宁省教育厅高等学校科学研究基金资助项目(2008294) |
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| 摘 要： | 为了确定广义延拓法在似大地水准面模型精化中的精度,采用理论分析与实验的方法,研究了GPS技术所获得的大地高数据和水准测量获得的正常高数据之间的关系,推导了广义延拓法的数学模型,用铁法矿区的实验数据,验证了广义延拓法的拟合结果。研究结果表明:其精度和计算时间均优于精度较高的有限元法,在不引入其他数据的情况下,在丘陵地区可以达到四等水准的精度要求。该成果对似大地水准面精化具有一定的参考价值和指导意义。
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| 关 键 词： | 模型精化 似大地水准面 有限元法 广义延拓法 数学模型 |
Application of generalized extended method on refining quasi-Geoid model |
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| XU Shuchun,JI Changdong,FENG Lei.Application of generalized extended method on refining quasi-Geoid model[J].Journal of Liaoning Technical University (Natural Science Edition),2011,30(2):209-211. |
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| Authors: | XU Shuchun JI Changdong FENG Lei |
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| Institution: | XU Shuchun1,JI Changdong2,FENG Lei 2 (1.Institute of Geotechnical Investigation & Survey for Urban-Rural Development of Lanshan District,Rizhao 276807,China,2.School of Geomatics,Liaoning Technical University,Fuxin 123000,China) |
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| Abstract: | To determine the accuracy of generalized extended method in quasi-Geoid model refinement,this study investigated the relationship between the data of geodetic height by GPS and the data of normal height by leveling based on theoretical analysis and experiment.In addition,the study derived a mathematical model of generalized extended method.The fitting results were validated by the experimental data from Tiefa mining area.The results show that the accuracy and computing time of generalized extended method ex... |
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| Keywords: | model refinement quasi-Geoid finite element method generalized extended method mathematical model |
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