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无定向导线的布设及精度分析
引用本文:程效军,鲍峰.无定向导线的布设及精度分析[J].同济大学学报(自然科学版),2002,30(7):886-889.
作者姓名:程效军  鲍峰
作者单位:同济大学测量与国土信息工程系,上海,200092
摘    要:随着城市各项建设与改造工程的快速进行,原有的平面控制点会部分地,经常地遭到破坏,使一些控制点成为弧点,只有坐标而没有通视方位,在这些控制点间进行控制网加密,就只能采用无定向导线及导线网的形式,由于多余观测值较少,无定向单导线可靠率低且导线点的横向误差经常超限,将无定向导线布设为合理的,优化的网形可以克服它的这一缺点并扩大其应用范围,为解决这些问题,对无定向导线的精度及布网形式进行了分析和讨论,并提出了有参考价值的建议。

关 键 词:无定向导线  精度分析  可靠率  误差椭圆  导线布设  平面控制点  GPS
文章编号:0253-374X(2002)07-0886-04
修稿时间:2001年10月14

Application of Non- oriented Traverse and Its Accuracy Analysis
CHENG Xiao-jun,BAO Feng.Application of Non- oriented Traverse and Its Accuracy Analysis[J].Journal of Tongji University(Natural Science),2002,30(7):886-889.
Authors:CHENG Xiao-jun  BAO Feng
Abstract:With the rapid development of city reconstruction,the original surveying control networks are destroyed partially and continually.As a result,many plane control points become isolate ones that have coordinates without orientations.Due to the few redundant observations,the single non-oriented traverse has low reliability,and its lateral-errors of traverse points are always not permitted.The above disadvantages can be overcome by designing the non-oriented traverse with reasonable and optimal network,as well as its application is extended.For solving above problems,the accuracy and schemes of non-oriented traverse network are analyzed and discussed in this paper,which may lead to some useful suggestions.
Keywords:non-oriented traverse  accuracy analysis  reliability  error-ellipse
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