post-stack migration 中文意思是什麼

post-stack migration 解釋
疊後偏移
  • post : n 1 （被指定的）地位，崗位；職位，職守。2 【軍事】哨所，站；哨兵警戒區；〈轉義〉哨兵，衛兵。3 基...
  • stack : n 1 （麥桿等的）堆，垛；乾草堆。2 積材，層積，堆積；〈英國〉一堆〈木材等的計量單位，＝108立方英尺...
  • migration : n. 1. 移住，遷移；移動；徙動。2. （鳥）移棲，遷徙；（魚）洄遊；（植物）侵移。3. 移住者群，移棲群。4. 【化、物】原子移動；電離子的移動。
  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. The paper, by the real seismic data high fidelity processing with post - stack high precision migration arithmetic and true amplitude in tahe oil filed, summed up a set of post - stack seismic data high fidelity amplitude processing technology to adapt the area reservoir prediction

    筆者從塔河油田地震資料高保真處理實踐中，總結出了一套適應該區碳酸鹽巖儲層預測要求的以疊后高精度偏移演算法和振幅保持處理為主的疊后高保真處理技術，取得顯著的效果。
  3. A hybrid migration method, named " fourier finite - difference migration ", is a post - stack depth migration scheme. the downward extrapolation operator is split into three operators : one operator is a phase - shift operator for a chosen constant background velocity, another operator is the well - known first - order correction term, and the third operator is a finite - difference operator for the varying of the velocity function. phase - shift downward extrapolation and finite - difference downward extrapolation preserves the advantage of phase - shift method and finite - difference method

    傅立葉有限差分（簡稱ffd ）偏移演算法是一種疊后深度偏移演算法，其向下延拓運算元是一種混合運算元，包括三項：一項是處理常速的相移運算元，一項是一階相移修正運算元，最後一項是類似45度方程的有限差分運算元，用來處理劇烈橫向變速。
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