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	RESEARCH ON GLOBE DISTANCE SURVEY BASED ON GLOBE SUBDIVISION
	Wang, Huiling ; Pu, Guoliang ; Cheng, Chengqi ; Wang, Shifeng
	2013
关键词	Global subdivision Distance survey Global discrete grids system Triangular Grids GeoSOT A*
英文摘要	With the development of digital earth, Mathematical measure methods based on spherical surface have been extensively studied. The development of global subdivision theories have broken through the traditional measure methods of geodetic scientists. This article summarizes two typical global discrete grid system's research achievements. Scholar Yuan builds a 12-connectivity distance survey method for triangular grid system. Inspired by his work, we proposed a method based on GeoSOT model by counting grids to fulfill the distance survey. In order to choose the right grids between two vertices to count edges, we employ the path finding algorithm A* in graph theories to find the shortest path. Experiments show that our algorithm is a good way to solve the affixed distance overlying the DEM.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000345638901071&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Electrical & Electronic; Geosciences, Multidisciplinary; Remote Sensing; EI; CPCI-S(ISTP); 0
语种	英语
DOI标识	10.1109/IGARSS.2013.6721370
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/311865]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Wang, Huiling,Pu, Guoliang,Cheng, Chengqi,et al. RESEARCH ON GLOBE DISTANCE SURVEY BASED ON GLOBE SUBDIVISION. 2013-01-01.

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