稀少控制條件下無人機空三加密及在公路地形測圖中的精度分析
發(fā)布時間:2018-03-17 01:04
本文選題:無人機 切入點:空三加密 出處:《測繪通報》2017年11期 論文類型:期刊論文
【摘要】:針對無人機航空攝影測量地面控制點多的問題,介紹了一種無人機影像空中三角測量方法,基于動態(tài)精密單點定位,使用單臺GNSS接收機獲得高精度攝站點三維坐標(biāo),地面無需架設(shè)GNSS基站。通過平地、山地公路項目試驗,分析了稀少控制條件下的控制點布設(shè)方法及空三加密精度,少量地面控制點即可滿足1∶2000比例尺地形圖的精度要求,極大減少了內(nèi)、外業(yè)工作量,簡化了無人機航空攝影作業(yè)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.
【作者單位】: 中交第二公路勘察設(shè)計研究院有限公司;
【基金】:中交第二公路勘察設(shè)計研究院科技研發(fā)項目(KJFZ-2015-075)
【分類號】:U412.24
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本文編號:1622453
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