Measurement Method of Shelter Angle of New-built Airport Towers Based on DSM Viewshed Analysis
Shelter angle measurement is an important means to ensure the safe and stable operation of airport tower related equipment and assist the site selection of new-built airport towers.The conventional shelter angle measurement methods mainly include the actual measurement method and the DEM analysis method,but the conventional method has the shortcomings of harsh observation conditions,cumbersome data processing,and limited accuracy of the results.In this paper,a shelter angle measurement method based on DSM viewshed analysis is proposed,and the terrain shelter angle measurement project of a new-built tower in Guangdong province is used as an example to verify the proposed method,and the results show that the calculation accuracy and implementation efficiency of the proposed method have been greatly improved,and it has strong reproducibility and generalization.
shelter angle measurementviewshed analysisDSMlaser point cloud