逆時偏移 的英文怎麼說

中文拼音 [nìshípiānyí]
逆時偏移 英文
reverse-time migration
  • 逆 : Ⅰ形容詞1 （方向相反） contrary; counter 2 [數學] inverse; converse Ⅱ動詞1 （抵觸; 不順從） go aga...
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 偏 : Ⅰ形容詞1 （不正; 歪斜） inclined to one side; slanting; leaning 2 （只側重一面） partial; prejudi...
  • 移 : Ⅰ動詞1. （移動） move; remove; shift 2. （改變; 變動） change; alter Ⅱ名詞（姓氏） a surname
  1. The frontal structure of longmenshan in the west of sichuan is very complex, showing intense structure deformation in overthrust belt, high structure amplitude, steep stratigraphic dip, developed fault blocks, complex seismic wave field, frequent change of lateral velocity, and poor image of post - stack time migration processing

    摘要川西龍門山前緣構造非常復雜，逆掩推覆構造帶構造形變強烈，構造幅度大，地層傾角陡，斷塊發育，地震波場復雜，速度橫向變化大，常規疊后時間偏移處理成像效果較差。
  2. Prestack migration is performed by reverse - time migration method based on maxwell ' s equations using time - domain finite - difference method

    疊前偏移用時間域有限差分求解麥克斯韋方程組的逆時偏移方法實現。
  3. 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

    本文還在接收函數射線反投影疊加成像的基礎上，提出了一種基於波動方程的接收函數疊前偏移成像方法，將同一事件接收函數中的轉換波和直達p波震相以各自的速度向深度方向逆時延拓成像，並通過不同慢度接收函數的疊加，得到最終的偏移成像結果。
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