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.
出处
《北京测绘》
2018年第1期40-43,共4页
Beijing Surveying and Mapping
关键词
控制网
测量平差
必要观测
必要起算数据
control net
survey adjustment
essential observations
essential data
