Research of radio wave propagation in forest based on Non-uniform mesh Parabolic Equation

摘要：

　　Non-uniform mesh technology of parabolic equation method is introduced to solve the radio wave propagation problems in forest more efficiently.The simulation errors of radio wave propagation in forest with different uniform grids are analyzed first.The results indicate that fine grid in forest area is necessary to ensure the simulation accuracy.As typical scenes for simulation are usually forest region within a large area, using uniform fine grids requires large computation memory.Hence,the non-uniform mesh technology is employed.The performance of non-uniform mesh technology in the application of localforest scene is analyzed, The result obtained by non-uniform meshes is in good agreement with that obtained by uniform fine grids.Besides, it makes nearly three times reduction of computation time compared with the one with uniform fine grids in this example.This demonstrates that the employment of non-uniform mesh parabolic equation method for forest scenes simulation can improve the computational efficiency greatly.

关键词： Parabolic equation Forest Non-uniform mesh Radio wave propagation

作者: Qinghong Zhang Cheng Liao Nan Sheng Linglu Chen

作者单位: Institute of Electromagnetics, Southwest Jiaotong University, Chengdu 610031, China

会议类型: 国际会议

会议名称: 2013 International Symposium on Antennas and Propagation(2013天线与传播国际会议)

会议地点: 南京

会议语种:英文

页码: 838-841

在线出版日期: 2013-10-23（万方平台首次上网日期，不代表论文的发表时间）