稀少控制條件下無(wú)人機(jī)空三加密及在公路地形測(cè)圖中的精度分析
發(fā)布時(shí)間:2018-03-17 01:04
本文選題:無(wú)人機(jī) 切入點(diǎn):空三加密 出處:《測(cè)繪通報(bào)》2017年11期 論文類(lèi)型:期刊論文
【摘要】:針對(duì)無(wú)人機(jī)航空攝影測(cè)量地面控制點(diǎn)多的問(wèn)題,介紹了一種無(wú)人機(jī)影像空中三角測(cè)量方法,基于動(dòng)態(tài)精密單點(diǎn)定位,使用單臺(tái)GNSS接收機(jī)獲得高精度攝站點(diǎn)三維坐標(biāo),地面無(wú)需架設(shè)GNSS基站。通過(guò)平地、山地公路項(xiàng)目試驗(yàn),分析了稀少控制條件下的控制點(diǎn)布設(shè)方法及空三加密精度,少量地面控制點(diǎn)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(jiǎn)化了無(wú)人機(jī)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(jì)研究院有限公司;
【基金】:中交第二公路勘察設(shè)計(jì)研究院科技研發(fā)項(xiàng)目(KJFZ-2015-075)
【分類(lèi)號(hào)】:U412.24
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本文編號(hào):1622453
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