偏移算法 meaning in Chinese
migration algorithm
Examples
- Finally , the convexity - concavity of the closed curve is detected . in the end , choi ' s pair - wise offset of polygon algorithm is improv ed based on the proposed curve intersection algorithm
文章最后完善了choi多边形等距偏移算法，并把本文提出的封闭曲线求交方法应用其中，用于自交点的确定。 - 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
笔者从塔河油田地震资料高保真处理实践中，总结出了一套适应该区碳酸盐岩储层预测要求的以叠后高精度偏移算法和振幅保持处理为主的叠后高保真处理技术，取得显著的效果。 - In term of analyzing and summarizing the existing achievement , propose an advanced and practical wavefield extrapolation operator and arithmetic of forward modeling and migration , which obtain numerical simulation and analysis completely and systemically and exploited new field of fractured reservoir seismic wavefield numerical simulation and applicationin in frequency - wavenumber domain
在总结、分析前人研究成果的基础上，提出了具有前瞻性和实用性的波场延拓算子与正演、偏移算法，较系统全面地进行了数值计算与分析，开辟了频率?波数域缝洞储层地震波场数值模拟与应用的新领域。 - 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
傅立叶有限差分(简称ffd )偏移算法是一种叠后深度偏移算法，其向下延拓算子是一种混合算子，包括三项：一项是处理常速的相移算子，一项是一阶相移修正算子，最后一项是类似45度方程的有限差分算子，用来处理剧烈横向变速。