摘要
传统的基于平面的平差计算常遇到投影和换带的问题,不利于整网平差。文中探究以地球椭球面为统一计算基准面进行联合平差的理论和方法,并推导适用的函数模型和随机模型。根据上述模型编制能够完成椭球面联合平差计算的软件,通过和COSA软件计算结果进行对比,验证它的可行性和有效性,可以有效地避免投影和换带所带来的一系列问题。
Traditional adjustment based on the plane often meets the problems of projection and alternate which influence the adjustment of a whole net. It exPlores the theory and method of combined adjustment based on a unified ellipsoid of earth, then the applicable function model and the stochastic model are derived. Software according to the above model which can complete the ellipsoid for combined adjustment computing is compiled. COSA software calculation results are compared, of which the feasibility and efficiency of this method are verified. It can effectively avoid a series of problems caused by the projection and alternate.
出处
《测绘工程》
CSCD
2014年第5期33-36,共4页
Engineering of Surveying and Mapping
基金
国家自然科学基金资助项目(41204016
41274017)
江苏省科技支撑计划(BE2010316)
关键词
GPS
全站仪
椭球面
联合平差
GPS
total station
ellipsoid
combined adjustment
