Grid And Its Application In Geodetic And Satellite Positioning Data Sharing

With appearance of new geodetic technology and popularization of its appliance, the geodetic engineering informatization must take a big stride forward. Full sharing of geodetic data and satellite positioning data under a network environment is an important part of the geodetic engineering informatization today and in a near future.Grid is a new information resource-sharing technique on the basis of internet, whose appearance, development and maturity supply a good solution to the realization of the full sharing of geodetic data and satellite positioning data under a network environment.After an overall understanding of the current popular Grid technical system, this paper put forward the idea of constructing geodetic data Grid nodes to realize the sharing of geodetic data and satellite positioning data. Furthermore, this paper discusses in detail how to construct a geodetic database Grid node based on OGSA-DAI and how to access it. In the end, the Continuously Operating Reference System (CORS) based on the base station Grid node is discussed roughly, and a new arthitecture of CORS based on the base station is put forward.