FFT-based Optimization of terrain in radio wave propagation model
Terrain is the most critical factor in the prediction of radio wave propagation.Using software predicts radio wave propagation produces large calculation and low speed.Approximate techniques are proposed here for ray-tracing systems used to predict radio propagation.In this paper,two-dimensional discrete FFT of the terrain and filter smoothing are studied.It is shown that within the allowed computational accuracy range filter smooth processing can be adopted to improve the calculate speed.These results can be used in optimization for the radio wave propagation prediction.
Terrain Optimization FFT LPF
Sheng Zhao Dan Shi Pengpeng Li Yougang Gao
School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing,100876,P.R.China
国际会议
Asia-Pacific Conference on Environmental Electromagnetics (2012年第六届亚太环境电磁学会议(CEEM 2012))
上海
英文
351-354
2012-11-06（万方平台首次上网日期，不代表论文的发表时间）