摘要
由于高斯-克吕格投影在海拔较高的地区投影变形问题,造成GPS测量的成果转换到国家统一的坐标系中不能直接应用于工程测量中,根据椭球膨胀法的原理,采用移动中央子午线和抬高投影面的方法,以减少投影变形的影响,并在内蒙古某黄河大桥中成功应用。应用这种方法不但能满足工程测量的要求,而且节省了人力财力,还提高了测量效率。
Because Gauss-Kruger projection in high altitude projective deformation problems,causing GPS achievement conversion to the national unified coordinates cannot directly applied in engineering survey,according to the principle of ellipsoid expansion method,using mobile central meridian and raise the planes methods to reduce the influence of projective deformation,and in Inner Mongolia application of a Yellow River bridge.By using this method not only can meet the engineering measurement requirements,and save manpower,but also improve the measurement efficiency.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
北大核心
2012年第3期198-200,共3页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
关键词
独立坐标系
GPS
投影变形
椭球膨胀法
Independent coordinate system
GPS
projective deformation
Ellipsoid expansion method
