中英
1
reverse-time migration中文是什么意思
- 中文翻譯
- 造句
- 逆時(shí)偏移
- reverse vt. 1.使顛倒，使倒轉(zhuǎn)，使反轉(zhuǎn)；使翻轉(zhuǎn)；翻(案)。 ...
- time n. 1.時(shí)，時(shí)間，時(shí)日，歲月。 2.時(shí)候，時(shí)刻；期間； ...
- migration n. 1.移住，遷移；移動；徙動。 2.(鳥)移棲，遷徙 ...
- reverse time depth migration 逆時(shí)深度偏移
- reverse migration 逆偏移
- migration time 遷移時(shí)間; 移動時(shí)間
- time migration 時(shí)間偏移
- time of migration 候鳥遷徙期
- finite difference time migration 有限差分時(shí)間偏移
- full time-migration 全時(shí)間偏移
- migration time window 移動時(shí)間窗口
- resolved-time migration 分解時(shí)間偏移法
- the window of migration time 遷移時(shí)間窗口
- time migration after stack 疊后時(shí)間偏移
- time of primary migration 初次運(yùn)移時(shí)間
- lock reverse time 船閘逆向作業(yè)時(shí)間
- reverse recovery time 反向恢復(fù)時(shí)間
- reverse-time extrapolation 逆時(shí)間外推
- reverse-time recursive filter 逆時(shí)遞歸濾波器
- time reverse test 時(shí)間互換測驗(yàn)
- time-reverse layer 影片倒片
- trr …… reverse recovery time 反向恢復(fù)時(shí)間
- real time data migration module 實(shí)時(shí)數(shù)據(jù)遷移模塊
- reverse current time lag relay 逆電流時(shí)延繼電器
- in migration 國內(nèi)人口遷移
- Prestack migration is performed by reverse - time migration method based on maxwell ' s equations using time - domain finite - difference method
疊前偏移用時(shí)間域有限差分求解麥克斯韋方程組的逆時(shí)偏移方法實(shí)現(xiàn)。 - Compared with the conventional finite - difference method on the fixed grid - size rectangular grids , the new method can be more cost - effective in complex models . numerical tests for both seismic modeling and reverse - time migration are performed on various theoretical models and a physical experiment
用該剖分方法得到的網(wǎng)格在各速度層內(nèi)的空間步長是不同的，而全區(qū)域上的時(shí)間步長卻近于恒定，因此在復(fù)雜模型上，本文方法的計(jì)算效率要高于傳統(tǒng)的矩形網(wǎng)格差分方法。 - Prestack migration method , based on wave motion equation , is also developed for receiver function , and compared with ray method . both p - to - s conversion wave and direct p phase contained in receiver function are migrated and imaged by reverse - time migration for data gather including all receiver functions recorded in all seismological stations for one event , and imaging profile is finally obtained by stacking for all events
本文還在接收函數(shù)射線反投影疊加成像的基礎(chǔ)上，提出了一種基于波動方程的接收函數(shù)疊前偏移成像方法，將同一事件接收函數(shù)中的轉(zhuǎn)換波和直達(dá)p波震相以各自的速度向深度方向逆時(shí)延拓成像，并通過不同慢度接收函數(shù)的疊加，得到最終的偏移成像結(jié)果。 - A new finite - difference method is developed for seismic modeling and reverse - time migration based upon the voronoi cell construction on irregular grids . curved velocity boundaries and irregular earth surface can be accurately represented using the irregular grid implementation . therefore the modeled and migrated results can be more accurate , and meanwhile , the efficiency is still preserved using an explicit finite - difference scheme
本文的方法可以實(shí)現(xiàn)任意非規(guī)則網(wǎng)格上的顯式差分計(jì)算，因此該方法在保持了傳統(tǒng)的矩形網(wǎng)格差分算法簡單、高效特點(diǎn)的同時(shí)，又能精確地描述彎曲界面和起伏地表，提高了有限差分地震模擬和偏移結(jié)果的精度。
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