无定向测量问题的解决  

Solution of the nondirectional survey problem

作　　者：陈永林 王新宇[2] 王博[3] 殷耀国[4,5] 何翔 

机构地区：[1]银川市水电勘测设计院,银川750001 [2]国家测绘地理信息局第二地理信息制图院,哈尔滨150081 [3]国家测绘地理信息局第四地形测量队,哈尔滨150081 [4]宁夏大学土木与水利工程学院,银川750021 [5]旱区现代农业水资源高效利用教育部工程研究中心,银川750021 [6]宁夏博源科奥测绘技术有限公司,银川750004

出　　处：《中国科技论文》2016年第3期351-357,共7页China Sciencepaper

摘　　要：为了充分利用不通视的高级控制点,结合工程实践系统地介绍了几种控制点加密方法,包括基于全球卫星定位技术的GNSS RTK方法,基于全站仪的无定向附合导线和任意设站法,基于经纬仪的双点后方交会和无定向三角锁。对于具有多余观测的加密控制点,坐标解算可以采用严密平差方法进行;其它情况可以采用便携计算机自编程序在工程现场完成计算,甚至可以利用Auto CAD方法图解得到结果。在使用加密控制点的时候,应根据现场设备条件和既有地物信息加以检核验证。To make full use of the advanced control points with bad visibility,several methods for densification of control points combine with the engineering practice is introduced in this paper,including GNSS RTK method based on global satellite positioning technology,nondirectional connecting traverse and arbitrary station method based on total station,two-point resection and nondirectional linear triangulation chain based on theodolite.For some densification control points with redundant observation,rigorous adjustment method can be used in coordinates computation,while for other cases,portable computer program can be used to complete the computation in work site,and even can use Auto CAD diagram to get the results.When using densification control point,checking and verification must be done according to the condition of work site equipment and the existing feature information.

关 键 词：无定向测量 GNSSRTK 无定向附合导线 任意设站法 双点后方交会 无定向线形锁 

分 类 号：TB22[天文地球—大地测量学与测量工程]