微小型无人机遥感系统获取高精度外方位线元素方法研究

发布时间：2018-03-29 20:29

本文选题：无人机　切入点：遥感　出处：《河南理工大学学报(自然科学版)》2017年03期

【摘要】：针对现有微小型无人机遥感系统外方位线元素精度不高的问题,提出用GNSS差分方法提高微小型无人机遥感系统轨迹记录的精度,再用相机延迟改正技术获取真实的相机曝光时刻,最后通过内插方法获取较高精度的微小型无人机影像外方位线元素。利用实测数据的空三实验表明,该方法可将外方位线元素的精度提高到亚米级。
[Abstract]:Aiming at the problem that the precision of the external azimuth line element of the existing remote sensing system of micro UAV is not high, the GNSS differential method is proposed to improve the track recording accuracy of the micro UAV remote sensing system. Then the camera delay correction technique is used to obtain the real exposure time of the camera. Finally, the extraazimuth line elements of the micro UAV image with high precision are obtained by interpolation method. This method can improve the precision of the elements of the external azimuth line to the sub-meter level.
【作者单位】：解放军信息工程大学;
【基金】：国家重点基础研究发展计划(973计划)项目(2012CB720000)
【分类号】：P228.4;P237

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