摘要
基于数字城市管理和射线跟踪算法的基本原理,采用三维实体环境建模、反向射线跟踪路径搜索和辐射场源射线多途径传播的场强合成算法,建立了一种对城市小区移动通信基站附近的电磁辐射场强进行系统建模与数值仿真的新方法.该方法有效克服了传统电波传播预测模型不能适应不同小区环境下的复杂建筑模型以及其他确定性方法不能精确找到电波传播路径的局限性.在城市小区的不同空间分布区域,本算法的计算机软件数值仿真结果与实地测量结果的良好一致性验证了该方法的实用性、有效性和正确性.
Based on the basic principles of digital city management and ray tracing algorithm,a new method was put forward that can model systemically and simulate numerically field intensity of electromagnetic radiation around the mobile communi- cation base station of city communities by using the steps of three-dimensional enti- ty environmental modeling, reverse ray tracing path searching and the field intensi- ty synthesis computing of radiation source multiple ways of spreading in order. This method can effectively overcome the limitations that traditional wave propagation prediction model can not adapt to the complicated construction model in different residential environment and other deterministic methods can not accurately find the radio propagation path. In different spatial distribution areas of city community, the good consistency of computer software simulation results of this algorithm and field measurement results verified that the method is practical, effective and correct.
出处
《电波科学学报》
EI
CSCD
北大核心
2013年第1期183-189,共7页
Chinese Journal of Radio Science
基金
浙江省自然科学基金资助项目(Y1110961)
浙江省公益技术研究社会发展项目(2011C23056)
关键词
移动通信基站
电磁辐射场强
环境建模
数值仿真
射线跟踪算法
mobile communication base station~ electromagnetic radiation field in-tensity~ environmental modeling~ numerical simulation~ ray tracing algorithm
