CAJ | 학술논문

介绍了子午线收敛角的概念和计算公式，并用C＋＋语言对高斯坐标正反算和子午线收敛角的计算公式进行了编译，提高了计算效率。选取徐州地区14个点进行试算，发现1954国家大地坐标系和1980国家大地坐标系在徐州地区可以互用收敛角计算公式，其误差对于高精度工程测量可以忽略不计。但是，通过运用误差传播定律对子午线收敛角公式分析发现，对于投影带边缘、纬度较高的地区计算子午线收敛角时，要区分使用。
개소료자오선수렴각적개념화계산공식，병용C＋＋어언대고사좌표정반산화자오선수렴각적계산공식진행료편역，제고료계산효솔。선취서주지구14개점진행시산，발현1954국가대지좌표계화1980국가대지좌표계재서주지구가이호용수렴각계산공식，기오차대우고정도공정측량가이홀략불계。단시，통과운용오차전파정률대자오선수렴각공식분석발현，대우투영대변연、위도교고적지구계산자오선수렴각시，요구분사용。
The paper introduces theconcept and formulas of meridian convergence angle and codes Gauss positive and inverse calcula -tion and meridian convergence angle by using C ++language , which improves the calculation efficiency .14 points of Xuzhou are se-lected and it is found that meridian convergence angle formulas can be used in either geodetic coordinate system l 954 or geodetic coor-dinate system l980 and the error can be neglected , however, it should distinguished when used for the calculation of projection band and the area with high latitude .