FDTD Parallel Computing of Microwave Scattering and Attenuation Characteristics Due to Randomly Distributed Rainfalls
Rain measurement system using propagation characteristics of microwave and mil-limeter wave is very important for disaster prevention system to foresee and prevent the oc-currence of disasters caused by strong rainfalls and for the sensor of ITS to support safe and automatic driving and cruising. In this study, propagation region is modeled as random me-dia with randomly distributed rainfalls. Propagation of electromagnetic wave in random media is analyzed by three-dimensional FDTD method. FDTD analysis demonstrates the dynamic characteristics of wave scattering and absorption phenomena in rain region where raindrops are distributed randomly. For the analysis of microwave scattering by rain, the analysis space in-cluding many raindrops less than and comparable with the wavelength is required and analysis region is much larger than the wavelength and a few meters. Parallel computation of FDTD is shown for efficient analysis of microwave scattering and attenuation characteristics in large rain region.
Yasumitsu Miyazaki Koichi Takahashi Nobuo Goto
Department of Media Informatics,Aichi University of Technology 50-2 Manori,Nishihasama-cho,Gamagori Institute of Technology and Science,The University of Tokushima 2-1 Minamijosanjima-cho,Tokushima 77
国际会议
Progress in Electromagnetics Research Symposium 2008(2008年电磁学研究新进展学术研讨会)(PIERS 2008)
杭州
英文
1-6
2008-03-24（万方平台首次上网日期，不代表论文的发表时间）