Helmert方差分量估计在附合导线平差中的应用  

Application of Helmert Variance Component Estimation in Connecting Traverse Adjustment

作　　者：李盟盟[1] 刘扬龙[1] 

机构地区：[1]安徽理工大学测绘学院,安徽淮南232001

出　　处：《科技创新与生产力》2016年第12期63-64,68,共3页Sci-tech Innovation and Productivity

摘　　要：对于附合导线测量数据,分别采用经验定权和Helmert方差分量估计定权两种平差方式进行平差计算,对比其平差后的坐标成果和点位精度等,进行分析研究。结果表明,利用Helmert方差分量估计,可以很好地对整个附合导线进行定权,提高待定点的点位精度。For the connecting traverse data, the paper respectively adopts two methods of experience weighting and Helmert variance component estimation weighting to do adjustment calculation, then it compares the coordinates and positional accura-cy to do analysis and research. The results show that, the Helmert variance component estimation can fix the weight of the whole connecting traverse well and improve the precision of the undetermined point.

关 键 词：HELMERT方差分量估计 附合导线 定权 

分 类 号：F207[经济管理—国民经济]