2) wave equation datum correction
波动方程基准面校正
1.
"Phase-shift time-shift" arithmetic was proposed by analyzing principle of wave equation datum correction.
在分析波动方程基准面校正原理的基础上,提出了"相移时移法"波场延拓算法,将相移算子分解为偏移算子、延拓算子和时移算子,并修改了Stolt公式,使得波动方程基准面校正能适应地表起伏剧烈、近地表速度纵横向变化剧烈的复杂地表条件。
2.
Mathematic and physical deduction of wave equation datum correction is able to decompose the phase-shift operator into migration operator, continuation operator and displacement operator, acquiring the method of wavefield continuation in f-k domain in a condition of vertical and lateral velocity-variation and giving 5 steps implementing wave equation datum correction.
本文根据波动方程基准面校正数理推导的结果,将相移算子分解为偏移算子、延拓算子和位移算子,从而得到纵横向变速条件下在频率—波数域实现波场延拓的方法,并给出实现波动方程基准面校正的5个具体步骤。
3) upward wave equation datum correction
波动方程向上基准面校正
4) finite difference mirgation
有限差分波动方程偏移
1.
Cut-error that made from the finite difference mirgation,phase angle of error transfer function and factors that determine their values are discussed.
分析误差传递因子相角等因素对有限差分波动方程偏移造成的相位畸变问题 ,找到相应规律。
6) wave equation finite-difference time-domain(WEFDTD) method
波动方程时域有限差分法(WEFDTD)
补充资料：有限差分
有限差分
finite difference
有限差分沛d触洲血旧耽;Koaeunaa pa3~‘l 见有限差分演算伍苗记一山压抓泊戊。火过场).
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条