Abstract：In view of the limitation that denoise of ordinary wavelet correlation is to use second-order correlation denoise only in scale domain or space domain, the paper presented a method for denoise of high-order correlation in wavelet scale or space domains. First, the five-scale static wavelet decomposition is carried out for seismic section, getting five component sections, and for each trace of five sections the high-order correlation is carried out for wavelet coefficient of adjacent scales in scale domain; then, for five sections after correlation in scale domain the high-order correlation is carried out again for wavelet coefficient of adjacent traces in same component section in space domain, and using the coefficient to modify the corresponding trace, which finished reconstruction after all component sections being correlated in space domain, and post-denoise seismic section is finally obtained. The numeric test and processing results of practical data showed that the method has evident denoise effect for random noise and is superior to wavelet denoise method only using second-order correlation in scale or space domain.
樊计昌, 王夫运, 刘明军, 海燕. 小波尺度域和空间域倾角扫描高阶相关去噪技术[J]. 石油地球物理勘探, 2008, 43(5): 514-517.
Fan Ji-chang, Wang Fu-yun, Liu Ming-jun, Hai Yan. Denoise by dip-angle sweeping high-order correlation in wavelet scale and space domains. OGP, 2008, 43(5): 514-517.
