Study On The Transfromation Of Reference-ellipsoid-centric Suvering And Mapping Results To China Geodetic Coordinate System2000

With the further popularization and precision measurement technology, changed thetraditional geodetic work, the geodetic coordinate system transformation fromreferncecoordinate system to the geocentric coordinate system. Since July1,2008, China fully openedthe geocentric coordinate system-China Geodetic Coordinate System2000, which meansthat the state and Provincial surveying and mapping activities must be carried out in thegeocentric coordinate system. Prior to the various surveying and mapping results used mostreference coordinate system results. To employ a geocentric coordinate system, differencesexist two coordinate system conversion, must coordinate system. Therefore, to complete thereference coordinate system results into CGCS2000conversion is an important work in theuse and promotion of China Geodetic Coordinate System2000.This paper introduces the related theoretical knowledge of coordinate system, relevantinterpretation of china geodetic coordinate system. On the basis of geodetic applicationtechnology and the existing data results, according to the distribution of control points, usinga variety of coordinate transformation model, were used to partition transformation methodand integral transformation method, calculating the correction grid coordinate transformation.Through the comparison of two kinds of excellent conversion method, method of calculationof the end of high precision and high resolution grid correction is presented using the integraltransform method.This paper focuses on Xi’an Coordinate System1980to the China Geodetic CoordinateSystem2000correction grid calculation. Using interpolation method and the method of gridcorrection within the compliance inspection accuracy, by drawing the correct amount ofcontinuous components DB, DL elevation test correction.Briefly discusses the existing mature method, high accuracy Xi’an Coordinate System1980using Beijing Coordinate System1954conversion (coordinate correctionmethod),calculation of Beijing Coordinate System1954conversion method of grid correctionof China Geodetic Coordinate System2000.