輕小型機載LiDAR的航線設計
發(fā)布時間：2018-10-29 21:22
【摘要】：為研究輕小型機載LiDAR的航線設計,以VUX-1型激光掃描儀為例,計算多周期回波(multi time around,MTA)對飛機作業(yè)高度的限制;根據(jù)要求的點云密度、掃描頻率、掃描線速度等指標,依照航空攝影測量原理以及機載LiDAR數(shù)據(jù)獲取規(guī)范,從中區(qū)別機載LiDAR與傳統(tǒng)攝影測量學的不同,并借鑒機載LiDAR的數(shù)據(jù)采集方式與傳統(tǒng)掛載專業(yè)相機的攝影測量的相似之處,判定在不同情形下激光的測距變化(例如測區(qū)內不同類型的目標反射率不同或大氣能見度不同導致的最遠測距能力的變化等);在考慮以上問題基礎上,對機載LiDAR系統(tǒng)進行航線設計;最后分別對比旁向點間距和航向點間距的誤差,分析其原因并判定該航線設計方案的可行性。
[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.
【作者單位】： 首都師范大學資源環(huán)境與旅游學院;首都師范大學三維信息獲取與應用教育部重點實驗室;
【基金】：國家自然科學基金項目“基于結構特征的車載激光掃描系統(tǒng)外方位元素在線標定方法研究”(編號:41371434) 測繪地理信息公益性行業(yè)科研專項項目“新一代多平臺多波段移動信息采集系統(tǒng)研制”(編號:201412020)共同資助
【分類號】：TN958.98
，
本文編號：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.
【作者單位】： 首都師范大學資源環(huán)境與旅游學院;首都師范大學三維信息獲取與應用教育部重點實驗室;
【基金】：國家自然科學基金項目“基于結構特征的車載激光掃描系統(tǒng)外方位元素在線標定方法研究”(編號:41371434) 測繪地理信息公益性行業(yè)科研專項項目“新一代多平臺多波段移動信息采集系統(tǒng)研制”(編號:201412020)共同資助
【分類號】：TN958.98
，
本文編號：2298864
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