摘要
利用高阶统计包含信号的相位信息特性 ,并基于信号的四阶累积量及其四阶谱 ,提出一种地震信号的非最小相位子波的估计方法 .在任意高斯噪声环境下 ,对地震子波进行最小相位和最大相位谱分解 ,两部分信息完全可以从四阶谱中恢复 .
Based on higher order statistics property containing signal phase information, fourth order cumulant and its fourth order spectral on the seismic received signal, a novel approach for estimating non minimum phase seismic wavelet is proposed. It can be fully reconstructed from the fourth order spectrum by only spectral decomposing the seismic wavelet into minimum phase and maximum phase in arbitrary Gaussian environment. Computer simulation demonstrates its effectiveness. [
出处
《地球物理学报》
SCIE
EI
CAS
CSCD
北大核心
2001年第3期404-410,共7页
Chinese Journal of Geophysics
基金
中国石油天然气集团公司中青年创新基金!(B2 64)
关键词
四阶累积量
四阶谱
非最小相位
地震信号处理
地震子波恢复
谱分解
Fourth order cumulant, Fourth order spectral, Non minimum phase, Seismic wavelet reconstruction, Spectral decomposition.
