基于线性模型的CPⅢ平面控制网平差  

CPⅢ control net adjustment based on linear model

作　　者：李建章[1] 武生荣 

机构地区：[1]兰州交通大学土木工程学院,兰州730070 [2]甘肃省中医学院,兰州730070

出　　处：《测绘科学》2012年第2期57-59,93,共4页Science of Surveying and Mapping

摘　　要：本文在分析传统CPⅢ平面控制网平差特点的基础上,提出一个新的数学模型,其函数模型为线性模型,随机模型通过最小范数二次无偏估计来确定。利用该数学模型进行平差计算,不需要计算待求参数近似值,不需要迭代计算,因此具有计算工作量小、形式简单等特点。为验证该模型的正确性,编制了程序,模拟观测数据进行平差计算。通过对大量实验数据的分析,证明该模型是可行的。A new mathematic model, whose function model is linear and random model is made by MINQUE method, was provid- ed on the basis of analyzing traditional CPⅢ control net adjustment feature. It＇ s not necessary to calculate approximate value and do iteration calculation so this model has features of simple form and easy workload. In order to verify the model, a program was made. The model was proved to be feasible by many tests.

关 键 词：CPⅢ平面控制网 线性模型 最小范数二次无偏估计 

分 类 号：P221[天文地球—大地测量学与测量工程]