稀少控制条件下无人机空三加密及在公路地形测图中的精度分析

发布时间：2018-03-17 01:04

  本文选题：无人机　切入点：空三加密　出处：《测绘通报》2017年11期 　论文类型：期刊论文

【摘要】：针对无人机航空摄影测量地面控制点多的问题,介绍了一种无人机影像空中三角测量方法,基于动态精密单点定位,使用单台GNSS接收机获得高精度摄站点三维坐标,地面无需架设GNSS基站。通过平地、山地公路项目试验,分析了稀少控制条件下的控制点布设方法及空三加密精度,少量地面控制点即可满足1∶2000比例尺地形图的精度要求,极大减少了内、外业工作量,简化了无人机航空摄影作业方式。
[Abstract]:Aiming at the problem of multiple ground control points in aerial photogrammetry of UAV, this paper introduces a method of aerial triangulation of UAV image. Based on dynamic precise single point positioning, a single GNSS receiver is used to obtain 3D coordinates of high precision camera station. There is no need to erect GNSS base station on the ground. Through the project test of flat ground and mountain highway, the method of setting control points under rare control conditions and the precision of space triple encryption are analyzed. A small number of ground control points can meet the precision requirements of 1: 2000 scale topographic map. It greatly reduces the workload of internal and external industries and simplifies the aerial photography operation of UAV.
【作者单位】： 中交第二公路勘察设计研究院有限公司;
【基金】：中交第二公路勘察设计研究院科技研发项目(KJFZ-2015-075)
【分类号】：U412.24
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本文编号：1622453