物探与化探2016，Vol.40Issue(3)：527-533,7.DOI:10.11720/wtyht.2016.3.14
频域稀疏双曲Radon变换去噪方法
Denoising method based on sparse hyperbolic Radon transform in the frequency domain
摘要
Abstract
Radon transform is a kind of technical method widely used in seismic data processing,but there are problems of low reso⁃lution and low computational efficiency in practical application.On the basis of phase shift hyperbola,the authors deduced time⁃invari⁃ant hyperbolic integral path,proposed sparse hyperbolic Radon transform based on Bayes principle,provided parameter selection prin⁃ciple of discrete transform,and introduced dynamic time windows to ensure the condition that reflection waves of different layers have the best convergence.Sparse hyperbolic Radon transform in the frequency domain has higher resolution and it can be realized in the frequency domain,so the computational efficiency can be drastically improved.Model data test and actual application result show that sparse hyperbolic Radon transform in the frequency domain can effectively remove regular interference, suppress random noise and improve the signal⁃to⁃noise ratio;in addition,it also has better fidelity and amplitude preservation.关键词
Radon变换/稀疏Radon变换/随机噪声压制/时不变双曲线Key words
Radon transform/sparse Radon transform/random noise suppressing/time invariant hyperbolic分类
天文与地球科学引用本文复制引用
贾春梅,姜国庆,刘志成,许璐..频域稀疏双曲Radon变换去噪方法[J].物探与化探,2016,40(3):527-533,7.基金项目
中石化科技部项目（P14127）；徐州城市地质调查、徐州地区岩溶塌陷调查项目 （）
