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Research On Survey Coordinate Transformation Models And Implementation Of Transformation System

Posted on:2011-07-07Degree:MasterType:Thesis
Country:ChinaCandidate:L J NiuFull Text:PDF
GTID:2120360308960535Subject:Geodesy and Survey Engineering
Abstract/Summary:PDF Full Text Request
With the continuous development of space orientation and the formation of global integration, global mapping data are increasingly demanding the unification and the reseach of the establish methods and the mutual transformation models of the various coordinate systems,and it is very important to achieve the conversion in different coordinate system.In this paper,we classify the whole coordinate system from the basic theories,such as the geometry and mathematical description of Earth ellipsoid,and then make some introduction of the coordinate system commonly used in China,for example, Beijing 54 coordinate system, Xi'an 80 coordinate system, WGS-84 coordinate system and the 2000 China geodetic coordinate system.At last,we summarizes the various coordinate transformation, and make some discussions of the methods for solving the transformation parameters,through the theoretical analysis of the results in coordinate transformation model both at home and abroad.There are two transformation models in this paper,space transformation model and the plane transformation model.And we make the emphatic researches about the two models which are commonly used in the coordinate transformation between WGS-84 coordinate system and reference center coordinates in China.And we also use the actual data to test and verify the models.According to a variety algorithms of coordinate transformation, we construct geodetic coordinate transformation system with C# language.and complete the mutual coordinate transformation between different coordinate forms both in the same and different reference ellipsoid.for example the coordinate transformation in Gauss plane cartesian coordinates, geodetic coordinates and space cartesian coordinate, Gaussian positive and negative counting and the calculation of coordinates for Zone.The system has a very good interface,and easy to operate, flexible and can deal the volume calculation,furthermore the results can satisfy certain degree of accuracy.
Keywords/Search Tags:coordinate system, coordinate transformation model, transformation parameters, coordinate transformation, geodetic coordinate transformation system
PDF Full Text Request
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