https://scholars.lib.ntu.edu.tw/handle/123456789/630795
標題: | An adaptive approach to optimise regional geoid undulation model for engineering applications | 作者: | Huang, Chun Jia JEN-YU HAN |
關鍵字: | Adaptive approach | EGM2008 | Geoid undulation | GNSS/levelling | Orthometric height | Surface fitting | 公開日期: | 1-一月-2022 | 出版社: | TAYLOR & FRANCIS LTD | 來源出版物: | Survey Review | 摘要: | Geoid undulation model is typically used for the conversion between GNSS obtained ellipsoidal heights and their orthometric counterparts. In this study, an adaptive approach for optimizing regional geoid model based on global geoid model and local GNSS/leveling measurements is presented. A rigorous sequential least squares approach coupled with an adjustable criterion is used for identifying appropriate observables so that an optimized model that fulfills a predefined quality level can be automatically produced. It has been demonstrated that a city scale geoid undulation model with a quality level around ± 14 (Formula presented.) can be obtained by applying the proposed approach. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/630795 | ISSN: | 00396265 | DOI: | 10.1080/00396265.2022.2096340 |
顯示於: | 土木工程學系 |
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