时空参考框架普适化表达

发布时间：2019-01-27 17:08

【摘要】：随着GIS研究领域拓展,空间信息系统面临着全尺度、全类型、全动态表达等挑战,而"全空间信息系统"则成为应对上述挑战的有效途径。时空参考框架是人类时空观的量化表达,面对不同尺度、不同范畴的研究对象,全空间信息系统时空参考框架面临着表达尺度、基准变换以及时空一体化等方面的问题,亟需探索普适化、归一化的时空参考框架表达与转换方法。本文通过对已有一维、二维、三维以及时空参考框架的定义、表达方式的分析与比较,尝试提出时空参考框架普适化表达方法,该表达不仅适用于数学定量表达,也适用于语义模糊表达,为在更广泛的意义上实现时空表达提供了借鉴;同时,基于现实世界的分维、分形特征,利用上述普适化表达方法,通过对时空参考框架时间维、空间维的变换方法研究,探索了以递归计算的方式实现时空参考框架的归一化表达,实现了全空间时空参考框架的全尺度、全维度变换。
[Abstract]:With the development of GIS research field, spatial information systems are facing challenges such as full-scale, all-type, all-dynamic expression, and "full spatial information system" is an effective way to deal with the above challenges. The space-time reference frame is the quantification expression of human space-time view. Facing the research object of different scales and different categories, the spatio-temporal reference frame of full spatial information system is faced with the problems of expressing scale, datum transformation and spatio-temporal integration, etc. There is an urgent need to explore universal and normalized spatiotemporal reference frame representation and transformation methods. In this paper, by analyzing and comparing the definitions and expressions of one-dimensional, two-dimensional, three-dimensional and spatio-temporal reference frames, we try to put forward a universal representation method of spatio-temporal reference frames, which is not only suitable for mathematical quantitative expression. It is also applicable to semantic fuzzy expression, which provides a reference for the realization of spatio-temporal expression in a wider sense. At the same time, based on the fractal and fractal characteristics of the real world, using the universal representation method mentioned above, the temporal dimension and the spatial dimension of the space-time reference frame are studied. The normalized representation of the spatio-temporal reference frame is realized by recursive calculation, and the full-scale and full-dimension transformation of the space-time reference frame is realized.
【作者单位】：中国科学院东北地理与农业生态研究所;中国科学院大学;
【基金】：国家重点研发计划项目“全空间信息系统”(2016YFB0502300) 国家自然科学基金项目(41671397)
【分类号】：P208

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