Abstract：With the adoption of China Geodetic Coordinate System 2000(CGCS2000), it is becoming vital to transform the present measurement results to CGCS2000. Two different approaches are used to realize the transformation between ITRF2005 and CGCS2000. One is the transformation with considering the epoch and the frame together and the other is with considering the two aspects respectively. The practical results show that the former can not satisfy the accuracy required. As for the later, the motion rate of the points unknown can be interpolated first by using a weightaverage method according to the available information of points known, and then adopt the 7 parameters to transform the different frames. This method can meet the needs of transformation accuracy which can achieve 1-2 cm.
Lin Xiaojing,Zhang Xiaohong,and Guo Fei. TRANSFORMATION METHODS AND ACCURACY ANALYSIS BETWEEN ITRF2005 AND CGCS2000 COORDINATE[J]. jgg, 2010, 30(2): 117-119.
