CAJ | 학술논문

针对适用于较大区域内进行坐标转换的问题,对2000坐标系转换的四参数模型进行研究.分别采用了三种试验方案进行分析比较,重点描述从1980西安坐标系到2000国家大地坐标系转换的过程及要求,对实验数据的精度进行分析以及不同方案中重合点的参数进行检校.研究结果表明:采用四参数模型转换是可行的,该模型控制点坐标的转换精度可以满足控制点转换精度需求,同时为大地测量坐标系的建设提供一些参考.
침대괄용우교대구역내진행좌표전환적문제,대2000좌표계전환적사삼수모형진행연구.분별채용료삼충시험방안진행분석비교,중점묘술종1980서안좌표계도2000국가대지좌표계전환적과정급요구,대실험수거적정도진행분석이급불동방안중중합점적삼수진행검교.연구결과표명:채용사삼수모형전환시가행적,해모형공제점좌표적전환정도가이만족공제점전환정도수구,동시위대지측량좌표계적건설제공일사삼고.
@@@@In terms of the problem of coordinate conversion in a larger area, this study had investigated the four parameters model in a 2000 coordinate system transformation. Three test plans were used to compare the transformations. In particular, the transformation from 1980 Xi’an coordinate system to 2000 coordinate system was described in a great detail including process and requirements. In addition, the accuracies of experimental data were analyzed and the parameters of coincidence points were calibrated in different schemes. The results show that the four parameters model transformation is feasible, and the coordinate conversion accuracy of control points can meet the requirements of control point conversion accuracy. The study provides some useful reference values for the construction of earth coordinate system.