轻小型机载LiDAR的航线设计
发布时间：2018-10-29 21:22
【摘要】：为研究轻小型机载LiDAR的航线设计,以VUX-1型激光扫描仪为例,计算多周期回波(multi time around,MTA)对飞机作业高度的限制;根据要求的点云密度、扫描频率、扫描线速度等指标,依照航空摄影测量原理以及机载LiDAR数据获取规范,从中区别机载LiDAR与传统摄影测量学的不同,并借鉴机载LiDAR的数据采集方式与传统挂载专业相机的摄影测量的相似之处,判定在不同情形下激光的测距变化(例如测区内不同类型的目标反射率不同或大气能见度不同导致的最远测距能力的变化等);在考虑以上问题基础上,对机载LiDAR系统进行航线设计;最后分别对比旁向点间距和航向点间距的误差,分析其原因并判定该航线设计方案的可行性。
[Abstract]:In order to study the route design of light and small airborne LiDAR, taking the VUX-1 laser scanner as an example, the limitations of multi-period echo (multi time around,MTA) on the altitude of aircraft are calculated. According to the required point cloud density, scanning frequency, scanning line velocity and so on, according to the principle of aerial photogrammetry and the data acquisition specification of airborne LiDAR, the differences between airborne LiDAR and traditional photogrammetry are distinguished. And draw lessons from the similarity between the data acquisition method of airborne LiDAR and the photogrammetry of traditional mounted professional camera. To determine the variation of laser ranging in different cases (e.g. the variation of farthest ranging capability caused by different types of target reflectivity or visibility in the atmosphere, etc.); On the basis of considering the above problems, the route design of airborne LiDAR system is carried out, and finally, the errors of side point spacing and course point spacing are compared, the reasons are analyzed and the feasibility of the route design scheme is judged.
【作者单位】： 首都师范大学资源环境与旅游学院;首都师范大学三维信息获取与应用教育部重点实验室;
【基金】：国家自然科学基金项目“基于结构特征的车载激光扫描系统外方位元素在线标定方法研究”(编号:41371434) 测绘地理信息公益性行业科研专项项目“新一代多平台多波段移动信息采集系统研制”(编号:201412020)共同资助
【分类号】：TN958.98
，
本文编号：2298864
[Abstract]:In order to study the route design of light and small airborne LiDAR, taking the VUX-1 laser scanner as an example, the limitations of multi-period echo (multi time around,MTA) on the altitude of aircraft are calculated. According to the required point cloud density, scanning frequency, scanning line velocity and so on, according to the principle of aerial photogrammetry and the data acquisition specification of airborne LiDAR, the differences between airborne LiDAR and traditional photogrammetry are distinguished. And draw lessons from the similarity between the data acquisition method of airborne LiDAR and the photogrammetry of traditional mounted professional camera. To determine the variation of laser ranging in different cases (e.g. the variation of farthest ranging capability caused by different types of target reflectivity or visibility in the atmosphere, etc.); On the basis of considering the above problems, the route design of airborne LiDAR system is carried out, and finally, the errors of side point spacing and course point spacing are compared, the reasons are analyzed and the feasibility of the route design scheme is judged.
【作者单位】： 首都师范大学资源环境与旅游学院;首都师范大学三维信息获取与应用教育部重点实验室;
【基金】：国家自然科学基金项目“基于结构特征的车载激光扫描系统外方位元素在线标定方法研究”(编号:41371434) 测绘地理信息公益性行业科研专项项目“新一代多平台多波段移动信息采集系统研制”(编号:201412020)共同资助
【分类号】：TN958.98
，
本文编号：2298864
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