起始方位角误差对附合导线平差结果的影响  

Effect of Initial-Bearing's Error on Adjustments of a Connecting Traverse

作　　者：张景湘[1] 马捷 赵龙平 

机构地区：[1]郑州市国土资源局,河南郑州450006 [2]河南省交通规划勘察设计院,河南郑州450052 [3]郑州测绘学校,河南郑州450005

出　　处：《测绘科学技术学报》2006年第1期62-64,68,共4页Journal of Geomatics Science and Technology

摘　　要：附合导线是工程测量中最常见的布网形式。结合附合导线平差过程,文中用真误差分析方法推导了起始方位角误差对附合导线平差结果的影响公式;通过分析与数据计算,得到了起始方位角误差对平差后导线点坐标和导线边方位角的影响规律;并与测角误差影响进行比较,得出了起始方位角误差影响可忽略的条件,对导线测量的理论研究与生产实践具有参考意义。The connecting traverse is the most common form of control networks in engineering surveys. By its adjustment procedure, the effect formula of initial-bearing＇ s error on adjustments of a straight and equal-side connecting traverse are introduced with the method of true error analysis. According to some calculation, analysis and comparison with infection of the measurement error of angels, several valuable conclusions in practice are obtained, such as the effect of initial-bearing＇s error on the coordinates of point, the effect of initial-bearing＇s error on the bearing of side, conditions to neglect the infection of initial-bearing＇s error, and etc.

关 键 词：附合导线 起始方位角 误差影响 

分 类 号：P225[天文地球—大地测量学与测量工程]