BOTTLENECK AND RESEARCH STRATEGY OF DATA MANAGEMENT UNDER ITRF
Liu Zhengcai 1,2) ;Zhu Jianjun 1) ;Xiao Benlin 1,3) ;Yi Chonghai 1) ; and Wang Huaiyu 4)
1)Department of Geomatics, Central South University, Changsha 4100832)Civil Engineering & Mechanics College, Xiangtan University, Xiangtan 4111053)School of Civil Engineering & Architecture, Hubei University of Technology, Wuhan 4300684)School of Vocational Technology, Xiangtan University, Xiangtan 411105
Abstract Data management of the largescale symmetrical matrices,as a bottleneck of the data management under International Terrestrial Reference Frame (ITRF) is discussed.We set up a symmetryrelationship model to convert the halfstructural matrices into fullstructural relationship tables with fixed fields,then set up the symmetryrelationship database in accordence with extended relationship principles. This symmetryrelationship model can be used to improve the efficiency of the information management under ITRF.
