西安电子科技大学学报（自然科学版）2018，Vol.45Issue(3)：35-39,135,6.DOI:10.3969/j.issn.1001-2400.2018.03.007
一种结合数字高程地图的射线跟踪建模方法
Geometric modeling method based on the digital elevation model in ray tracing
摘要
Abstract
In order to solve the problem of data sharing between different formats of a digital map,this paper introduces the modeling ideas and storage formats of the traditional digital map and digital elevation model (DEM),on the basis of which the algorithms for conversion between them are given by a flow diagram.Its feasibility and correctness are verified by a simulation example,and then the effect of the resolution of the DEM on the vertex error of each building is analyzed.Besides,a vertically polarized dipole antenna in a typical macro-cellular environment is simulated by using the DEM-based ray tracing model,and the results of power coverage are shown in an intuitive way,which extends the applicability of the ray tracing model and provides a new idea for the study of radio propagation in urban macro-cellular scenes.关键词
数字地图/数字高程地图/射线跟踪/微小区场景/电波传播Key words
digital map/digital elevation model/ray tracing/macro-cellular environment/radio propagation分类
信息技术与安全科学引用本文复制引用
关晓伟,郭立新,王亚姣,李清亮..一种结合数字高程地图的射线跟踪建模方法[J].西安电子科技大学学报（自然科学版）,2018,45(3):35-39,135,6.基金项目
国家自然科学基金创新研究群体科学基金资助项目(61621005) （61621005）
电波环境特性及模化技术国家重点实验室基金资助项目(201400010) （201400010）
