频率域偏移

MIGRATION IN FREQUENCY DOMAIN

本文介绍在国产一五○机上频率域偏移的结果,主要通过对向斜、断层和地堑模型的合成地震记录进行了偏移,改进了斯托尔特的插值方法,研究了速度、道长,尼奎斯特频率和频率域滤波的影响,提出了中、小型计算机上实现频率域偏移的初步意见.

The results of frequency domain migration by model-150 computer system made in China are introduced in this paper. Mainly they are: the migration is performed for the synthetic seismogram from syncline, fault and graben model; some improvements are made on Stolt Interpolation method; the influences are examined on velocity, trace length, Ny-quist frequency and frequency filtering and some tentative proposals for how can the frequency domain migration be brought about by mini-micro systems are offered.