一种用于工程应用的区域大地水准面起伏模型优化的自适应方法

IF 1.2 4区地球科学 Q3 ENGINEERING, CIVIL

Survey Review Pub Date : 2022-07-11 DOI:10.1080/00396265.2022.2096340

Chun-Jia Huang, Jen-Yu Han

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引用次数: 0

摘要

大地水准面起伏模型通常用于GNSS获得的椭球高度与其正交高度之间的转换。本文提出了一种基于全球大地水准面模型和局部GNSS/水准测量的区域大地水准面自适应优化方法。将严格的序列最小二乘法与可调标准相结合，用于识别适当的可观察性，从而可以自动生成满足预定义质量水平的优化模型。已经证明，一个质量水平为±的城市尺度大地水准面起伏模型 14可以通过应用所提出的方法来获得。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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An adaptive approach to optimise regional geoid undulation model for engineering applications

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 can be obtained by applying the proposed approach.

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来源期刊

Survey Review 地学-地球科学综合

CiteScore

3.50

自引率

6.20%

发文量

审稿时长

6 months

期刊介绍： Survey Review is an international journal that has been published since 1931, until recently under the auspices of the Commonwealth Association of Surveying and Land Economy (CASLE). The journal is now published for Survey Review Ltd and brings together research, theory and practice of positioning and measurement, engineering surveying, cadastre and land management, and spatial information management. All papers are peer reviewed and are drawn from an international community, including government, private industry and academia. Survey Review is invaluable to practitioners, academics, researchers and students who are anxious to maintain their currency of knowledge in a rapidly developing field.