A f-x Explicit migration is carried out through spatial convolution of finite-length extrapolation operator with frequency slice, which is concise, high efficient, and easy to extend from2 D to3 D.

• 频率空间域显式偏移利用有限长度的褶积算子,通过对不同的频率进行空间褶积来实现偏移成像,且具有简洁、效、于扩展等特点。