计算机科学 ›› 2013, Vol. 40 ›› Issue (Z11): 409-411.

• 智能系统及应用 • 上一篇    下一篇

GPU架构下基于经验模态分解的地震瞬时属性并行提取算法的研究

曹晓初,金弟,王宗仁,王启迪   

  1. 杭州地质研究院 杭州310023;杭州地质研究院 杭州310023;杭州地质研究院 杭州310023;杭州地质研究院 杭州310023
  • 出版日期:2018-11-16 发布日期:2018-11-16

Research on the Seismic Instantaneous Attributes of Empirical Mode Decomposition Parallel Extraction Algorithm Based on GPU

CAO Xiao-chu,JIN Di,WANG Zong-ren and WANG Qi-di   

  • Online:2018-11-16 Published:2018-11-16

摘要: 从地震勘探资料中提取地震瞬时属性具有十分重要的意义,而基于信号局部特征的经验模态分解为非线性非稳定信号提供了一种全新的瞬时属性提取方法。对经验模态分解算法在GPU架构上的并行处理实现进行了分析和研究。通过实验对比测试表明,GPU架构下的算法运行效率较CPU具有明显优势。在测试数据中,GPU加速比最高达到了8.66倍。

关键词: 经验模态分解,瞬时属性,本征模函数,并行处理,GPU

Abstract: It is significant that instantaneous attributes have been extracted from seismic data.Empirical mode decomposition based on the local characteristics provides a new analysis method suitable for nonlinear and non-stationary signals.EMD parallel algorithm has been analyzed and researched on GPU.Computation efficiency in GPU has substaintial advantage of that in CPU by comparative experiment,and speedup of GPU is up to 8.66compared to CPU among the test data in this article.

Key words: Empirical mode decomposition,Instantaneous attribute,Intrinsic mode function,Parallel process,GPU

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