摘要
对数字地籍测量中首级及加密控制网的布网形式及精度作了较详细的介绍及分析。用GPS网作为首级控制网作业灵活、快捷,对通视无要求,且精度高,大大提高了工作效率;加密控制网布设为一、二级导线形式,采用电磁波测距进行测量,因地制宜,克服了GPS测量中出现的盲点问题;图根导线布设为支导线形式,用全站仪测出图根点的坐标,进行细(碎)部测量,满足了1∶500地籍测量中各项精度要求。
A detailed description on the arrangement of the top level and encoded control reference frame and a precision analysis on the measurement of figure cadastration have been presented. The efficiency and precision can be greatly improved with the GPS as the top level control reference frame. Encoded control reference frame are designed in the form of level one and level two lead, and distance measurement on a specific spot is carried out with electronic magnetic wave. Blind spot problem in GPS measurement can be overcomed with this method. The lead of map control point are designed and arranged in the form of branch lead. Electronic Speed Measurement Instrument is used to pinpoint the coordinate of map control point. It can measure the specific spot and meet the precision demands in the figure cadastration with proportion of 1∶500.
出处
《山东建筑工程学院学报》
2004年第3期61-64,共4页
Journal of Shandong Institute of Architecture and Engineering
关键词
地籍测量
控制
GPS
电磁波测距导线
图根导线
精度
figure cadastration
control
GPS
lead of electronic magnetic wave
lead of measurement of map
precision
