首页>
外国专利>
Method of filter generation for seismic migration using Remez algorithm
Method of filter generation for seismic migration using Remez algorithm
展开▼
机译:基于Remez算法的地震偏移滤波器生成方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method for efficiently and accurately producing filter coefficients for wavefield extrapolation which is particularly useful for migrating seismic data using a multiprocessor parallel computer as provided. In 3D seismic migration, the techniques have been developed for 3D processing using 1D extrapolation filters. The present invention uses a Remez-type approximation for developing such extrapolation filters which increases image quality or reduces processing time, or both. Additionally, the method provides an automated method for producing such extrapolation filters which is particularly useful in parallel seismic migration because of the large number of extrapolation filters which must be produced. The automated method of generating filters sets a frequency transition band where the amplitude is specified to be monotonically decreasing which insures stable filter design.
展开▼