软件实现快速相关计算方法探讨

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英文篇名：Discussion about fast correlation calculation software 中文刊名：物探装备 英文刊名：Equipment for Geophysical Prospecting 作者：赵培根 ; 穆群英 英文作者：Zhao Peigen and Mu Qunying. 中文关键词：相关计算方法 ; 并行处理 ; OpenMP 英文关键词：related computational methods ; parallel processing ; openMP 出版日期：2009-12-25 机构：东方地球物理公司装备制造事业部大型仪器研发项目组; 年：2009 期：S1 出版单位：物探装备

摘要

可控震源作为地震勘探采集施工的激发源已得到广泛地应用。随着地震勘探采集道数的不断增多,相关运算速度已成为影响施工效率的一个重要因素。东方地球物理公司独立研制的新型地震数据采集记录系统以傅立叶变换和哈特`利变换混合算法(FFT-DHF)为核心,运用分段求和的计算方式,结合OpenMP并行处理方法,借助多CPU、多核高性能服务器的运算处理能力,用纯软件方法实现了在大道数采集情况下,快速完成相关运算处理的功能。通过大量的测试和验证,证明了算法的正确性、稳定性和精度符合要求。
As one of the most important excitation sources,vibroseis has been widely used in field seismic exploration. With the growing number of seismic acquisition channels,the related computation speed will influence the field operation efficiency. BGP has independently developed a new type of seismic data acquisition system. With Fourier transform and Hartley transform hybrid algorithm (FFT-DHF) as the core and the use of sub-summation method for calculating,this system combined with OpenMP parallel processing method and using multi-CPU,multi-core high-performance server computing processing power to complete the related computation rapidly by pure software approach in the multi-channels operation. Through a amount of testing and verification,the correctness,stability and accuracy of this algorithm proved to meet the requirements well.

引文

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