计算机工程与应用2016，Vol.52Issue(15)：266-270,5.DOI:10.3778/j.issn.1002-8331.1410-0034
LLE重构和SVD分解的地震信号降噪方法
Noise suppression method for seismic signals based on LLE reconstruc-tion and SVD decomposition
摘要
Abstract
Existing noise reduction methods for seismic signals can not achieve a good result for the curve events of seis-mic profile. This paper proposes a noise suppression method for seismic signals based on Locally Linear Embedding (LLE)reconstruction and SVD decomposition. First, the method uses the reconstruction of locally linear embedding to reconstruct each sample of seismic data by its neighborhoods, which achieves the linearization of the curve events of non-linear data. This removes the random noise in certain extent. Then, it separates the effective signals from the data contain-ing the noise according to a good coherence of effective frequency signals for seismic data of LLE reconstruction, and gets rid of non-relevant noise. It ultimately achieves random noise suppression of seismic data. Finally, the experiments are conducted on forward model and real seismic data. The proposed method effectively removes random noise compared with traditional SVD method, and it does not lose the effective signals mainly.关键词
局部线性嵌入/奇异值分解/重构/分解/地震信号/去噪Key words
Locally Linear Embedding(LLE)/Singular Value Decomposition(SVD)/reconstruction/decomposition/seismic signals/noise reduction分类
信息技术与安全科学引用本文复制引用
崔业勤,高建国,丁国超..LLE重构和SVD分解的地震信号降噪方法[J].计算机工程与应用,2016,52(15):266-270,5.基金项目
黑龙江省自然科学基金（No.F200804）；黑龙江省教育厅科技项目（No.11531056）。 （）
