计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2013年
10期
22-24
,共3页
逆时偏移(RTM)%哈夫曼编码%计算机机时%内存占有量%Marmousi模型
逆時偏移(RTM)%哈伕曼編碼%計算機機時%內存佔有量%Marmousi模型
역시편이(RTM)%합부만편마%계산궤궤시%내존점유량%Marmousi모형
Reverse Time Migration(RTM)%Huffman coding%computer time%memory consumption%Marmousi model
逆时偏移成像精准,但是其偏移时计算机机时过长的问题一直困扰着逆时偏移的实际应用.以缩短逆时偏移的计算机机时为目的,在分析了造成计算机机时过长的原因的基础上,采用基于图像编码的哈夫曼编码方法缩减逆时偏移计算时的内存占有量,从而解决计算机机时过长的问题,通过对Marmousi模型的叠前深度逆时偏移处理,由偏移成像结果可见提出的将哈夫曼编码应用于逆时偏移成像不仅能够解决逆时偏移计算机机时过长的问题,而且具有良好的成像效果.
逆時偏移成像精準,但是其偏移時計算機機時過長的問題一直睏擾著逆時偏移的實際應用.以縮短逆時偏移的計算機機時為目的,在分析瞭造成計算機機時過長的原因的基礎上,採用基于圖像編碼的哈伕曼編碼方法縮減逆時偏移計算時的內存佔有量,從而解決計算機機時過長的問題,通過對Marmousi模型的疊前深度逆時偏移處理,由偏移成像結果可見提齣的將哈伕曼編碼應用于逆時偏移成像不僅能夠解決逆時偏移計算機機時過長的問題,而且具有良好的成像效果.
역시편이성상정준,단시기편이시계산궤궤시과장적문제일직곤우착역시편이적실제응용.이축단역시편이적계산궤궤시위목적,재분석료조성계산궤궤시과장적원인적기출상,채용기우도상편마적합부만편마방법축감역시편이계산시적내존점유량,종이해결계산궤궤시과장적문제,통과대Marmousi모형적첩전심도역시편이처리,유편이성상결과가견제출적장합부만편마응용우역시편이성상불부능구해결역시편이계산궤궤시과장적문제,이차구유량호적성상효과.
Reverse Time Migration is a precise migration methods, however, RTM spends too long computer time which im-pedes its development. In the paper, the aim is to save the computer time based on analyzing the reason of it, and the Huffman coding is employed into RTM for saving the memory consumption to reduce the computer time. Marmousi model is used and the migration results illustrate that the method not only can solve the long computer time problem, but also acquire the compara-tive imaging accuracy.
