CUDA IMPLEMENTATION IN THE EM SCATTERING OF A THREE-LAYER CANOPY

被引:7
作者
Jiang, W-Q [1 ]
Zhang, M. [1 ]
Chen, H. [1 ]
Lu, Y-G [2 ]
机构
[1] Xidian Univ, Sch Sci, Xian 710071, Peoples R China
[2] Sci & Technol Electromagnet Scattering Lab, Beijing 100854, Peoples R China
来源
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2011年 / 116卷
基金
中国国家自然科学基金;
关键词
ELECTROMAGNETIC-WAVE SCATTERING; MONTE-CARLO-SIMULATION; FAST RCS PREDICTION; BOUNCING RAY METHOD; LIGHT-SCATTERING; MODEL; VEGETATION; GPU; FOREST; DISKS;
D O I
10.2528/PIER11031702
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Calculation of the EM scattered fields from a three-layer canopy faces intensive computational burden, when the area becomes large and obviously lames the application of the traditional serial algorithm. With the development of graphics hardware, the Graphics Processing Unit (GPU) can be used to calculate the electromagnetic (EM) scattering problems parallelly. In this paper, the Compute Unified Device Architecture (CUDA) is combined with the four-path method and the reciprocity theorem to improve the speed of calculating the EM scattering properties from a three layer-canopy which are simulated by employing the Monte-Carlo method. We get a highest speedup of 294 times in comparison with the original serial algorithm on a Core (TM) i5 CPU with a GTS460 GPU as a coprocessor.
引用
收藏
页码:457 / 473
页数:17
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