摘要：The Radon transform is a commonly used algorithm in seismic data processing，which achieves seismic data interpolation，multiple attenuation，and wave field separation through specific path summation. However，due to the limitations of acquired data and algorithms，resolution in the transform domain is relatively low. Improving the resolution of the Radon domain has always been a research hotspot. The most frequently used method is the reweighted algorithm with many times of iteration，namely updating weights iteratively to focus the weighted value on the curvature of the seismic data，but it is difficult for the algorithm to focus it on the actual curvature position. Therefore，this paper proposes an optimized new method to improve the resolution of the transform domain，which involves calculating a weighting matrix within the dominant frequency band of the seismic data and focusing the weighted value on the actual seismic curvature position. Firstly，the dominant frequency of the seismic data is calculated，and a range around this dominant frequency is taken as the constrained frequency band. A lower- frequency constraint strategy is applied to the seismic data within the dominant frequency band，and the weighting matrix from low to high frequency is iteratively calculated. The final weighting matrix is obtained from the last weighting matrix within the dominant frequency band and is then applied to the calculations of all other frequencies. The data in the dominant frequency band have a high signal-to-noise ratio and strong amplitude，which thus indicates the proposed method is more stable，and the weighting matrix obtained through it can significantly enhance the resolution of the transform domain. In addition，compared with other iterative methods，it avoids the iterative process of each frequency’s weighting matrix，with a higher computational efficiency. Tests on synthetic and real data have proven the effectiveness and advantages of the proposed method in multiple attenuation. ? 2024 Editorial office of Oil Geophysical Prospecting. All rights reserved.

ISSN号：1000-7210

卷、期、页：卷59期6：1286-1296

发表日期：2024-12-15

期刊分区（SCI为中科院分区）：无

收录情况：EI（工程索引）,北大中文核心期刊

发表期刊名称：石油地球物理勘探-Shiyou Diqiu Wuli Kantan/Oil Geophysical Prospectingng

通讯作者：赵凯歌,廖震

第一作者：马继涛

论文类型：期刊论文

论文概要：马继涛,赵凯歌,廖震，Multiple attenuation by high precision Radon transform with dominant frequency band constraint，石油地球物理勘探-Shiyou Diqiu Wuli Kantan/Oil Geophysical Prospectingng，2024，卷59期6：1286-1296

论文题目：Multiple attenuation by high precision Radon transform with dominant frequency band constraint