摘要
通过对变形监测网平差基准的选择及参考点位稳定性分析,提出了在绝对网中采用固定基准平差,采用平均间隙法进行点位稳定性分析;在相对网中采用稳健迭代权法找到平差基准,采用单点位移分量法进行点位稳定性分析。通过实践监测数据表明:采用上述方法进行监测数据处理,能够得到最符合真值的监测点位变形量。
This paper mainly discusses the problem about the selection of adjustment datum and stability analysis of dot position,in both absolute and relative networks,in the deformation. In order to get the true absolute deformation value,this paper put forward choosing fixed datum for adjustment and the mean spacing method for the stability analysis of points in absolute network,which can achieve good results through the empirical data,the robust iterative weight method is used in the relative network,finding a realistic adjustment benchmark,and then the point stability analysis is carried out by the limited difference method,which can also get the actual displacement of the actual point.
引文
[1]赵显富.区域沉降观测稳健迭代计算与点位稳定性分析[J].测绘通报,1998(8):11-13.
[2]黄声享,尹晖,蒋征.变形监测数据处理[M].武汉:武汉大学出版社,2010:99-103.
[3]吴杰,杨进才.变形监测基准网的稳定性分析[J].中国西部科技,2009,8(33):16-18.
[4]黄声享.监测网的稳定性分析[J].测绘信息与工程,2001(3):16-19.
[5]陈国栋,向东,黄甜,等.沉降监测基准网稳定性分析的应用[J].地理空间信息,2010(4):149-152.
[6]陶本藻.测量数据处理的统计理论和方法[M].北京:测绘出版社,2007:193-206.
[7]崔希璋,於宗伟,陶本藻,等.广义测量平差[M].武汉:武汉大学出版社,2009:37-46.
[8]陈刚,胡友健,赵斌,等.GPS变形监测的位移显著性检验方法研究[J].测绘科学,2008,33(2):90-93.
[9]尹晖,杨睿,陈鹏云.基准网基准点稳定性检验方法与应用[J].武汉理工大学学报,2010,32(6):861-863.
[10]黄兵杰,肖建华,严小平,等.变形监测网稳健迭代权的计算与稳定性分析[J].工程勘察,2011(3):67-71.