Journal of Applied Sciences ›› 2014, Vol. 32 ›› Issue (3): 274-280.doi: 10.3969/j.issn.0255-8297.2014.03.008

• Signal and Information Processing • Previous Articles     Next Articles

Reverse Time Migration Imaging and SPIHT

ZHANG Xiao-dan1, ZHANG Zhi-yu2, XU Jin1, ZHU Yao-lin1   

  1. 1. Institute of Electronics and Information, Xi’an Polytechnic University, Xi’an 710048, China
    2. Institute of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, China
  • Received:2013-09-05 Revised:2013-10-17 Online:2014-05-31 Published:2013-10-17

Abstract: Reverse time migration (RTM) is a precise migration methods based on the full-wave equation,however, RTM takes too much computing time. This paper aims to save the computing time by analyzing the RTM and applying set partitioning in hierarchical tree (SPIHT) based on integer wavelet transform (IWT)
of LS to save memory consumption, thus reducing computing time. The Marmousi model is used in the RTM-SPHIT method. The migration results show that the method can solve the problem of computing time consumption with good imaging accuracy.

Key words:  reverse time migration (RTM), computer time, integer wavelet transform (IWT), set partitioning in hierarchical tree (SPIHT), Marmousi model

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