GPS技术在安庆市城市控制测量中的应用

发布时间：2018-06-09 02:35

  本文选题：GPS控制网 + 水准联测　； 参考：《现代矿业》2016年05期

【摘要】：安庆市城市测量控制网改造采用现代大地测量方法,利用D级GPS控制网作为测区首级控制网,以二等水准点作为首级高程控制点,布设7个点构成骨架网。按照GPS网的可靠性指标、精度指标、效率指标进行优化设计,并进行GPS二、三、四等水准联测,通过一定数量和分布均匀的GPS水准点进行高程拟合,其精度完全符合1∶500大比例尺测图和城市规划测量的精度要求,可供类似工程参考。
[Abstract]:The transformation of Anqing city survey control network adopts the modern geodetic method, using D class GPS control network as the first control network of surveying area, and taking the second leveling point as the first elevation control point, and setting up 7 points to form the skeleton network. According to the reliability index, precision index and efficiency index of GPS network, the optimization design is carried out, and the GPS leveling of two, three and four grades is carried out, and the height fitting is carried out through a certain number and uniform distribution of GPS leveling points. Its precision fully meets the requirement of 1: 500 scale surveying and urban planning surveying, which can be used as reference for similar projects.
【作者单位】： 安庆市勘察测绘院;
【分类号】：P228.4
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本文编号：1998437