论测量平差中必要观测数的确定  

Discussion on the Determination of Essential Observations in Survey Adjustment

作　　者：付新启 

机构地区：[1]河北工程大学矿山与测绘工程学院,河北邯郸056038 [2]河北天地资环勘测规划设计有限公司,河北邯郸056002

出　　处：《北京测绘》2018年第1期40-43,共4页Beijing Surveying and Mapping

摘　　要：必要观测数用来计算多余观测数,是控制网测量平差的基础数据,十分重要。必要观测数除了和控制网中未知点数有关外,还与起算数据及其种类有关。本文通过分析必要观测与各类起算数据之间的内在联系,给出了确定必要观测数的一种新方法,并列举了不同种类的控制网实例验证了该方法的正确性。与已有方法相比,新方法推导思路简洁,容易理解,且计算公式简单、便于记忆和使用,对测量平差教学有一定的帮助。The essential observation number ss used to calculate the redundant observation number, which ss fundamen-tal and very important ^n surveying adjustment. In addition to the number of unknownessential observation are related to the orginal data and their types. By analyzing the internal relationship between es-sential observation and all kinds of original data, a new method for determining essential observation number is gven. Various examples of control net are cited to verify the correctness of the method. Compareods, the new method s smple and easy to understand, and the calculation formula s smple,use, which s helpful for surveying adjustment teaching.

关 键 词：控制网 测量平差 必要观测 必要起算数据 

分 类 号：P207[天文地球—测绘科学与技术]