空间圆心确定模型及精度分析  

Mathematical Model for Determining Space Center and Precision Analysis

作　　者：张金华[1] 鲍峰[1] 欧建良[1] 刘梅余[1] 

机构地区：[1]同济大学土木学院测量与国土信息系,上海200092

出　　处：《现代测绘》2008年第3期11-12,25,共3页Modern Surveying and Mapping

摘　　要：介绍了三点确定圆心和多点平差确定圆心的数学模型方法,提出了数学模型中的一些不足和相应的解决办法,最后通过模拟的数据分析不同的点位分布对三点确定圆心的影响,有利于在实际工作中应用合理的点位分布提高精度。所有的数学模型都经过了VC++编程实现。The paper introduced mathematical model for determining space center by three-point and multi-point adjustment. It pointed out some short comings and puts forward corresponding solutions. It analyzed the influence of different-point distribution on three-point identifying space center through analog data. It helps to improve precision in practical work with appropriate point distribution. All the mathematical models were programmed by Visual C＋ ＋.

关 键 词：空间圆心 三点定圆 多点定圆 

分 类 号：TU198[建筑科学—建筑理论]