中文摘要：

利用高阶统计量所具有的可抑制高斯噪声和比常规的自相关函数包含更多信息的优点，并结合地震解释的实际问题，本文采用四阶矩函数代替互相关函数进行相干计算，对第一代相干体算法进行了改进，发展了基于高阶统计量的相干体算法．该方法不仅计算速度快，而且抑制噪声能力强．通过与传统相干算法实际应用对比，该算法有效地突出了地层的高连续性特征，有利于层位追踪和断层解释，尤其利于中深层构造解释．

英文摘要：

Based on the advantages of restraining Gaussian noise and information of common power spectral function, combined with higher order statistics and seismic interpretation ,the paper studied the higher-order statistics based on coherency algorithm, which replace correlation function with fourth order moment to calculate coherency and develop a new coherency algorithm. The new algorithm has very fast calculating speed and strong valid for restraining Gaussian noise. The result of practical coherent time profiles indicates that the new algorithm can effectively enhance the continuity, which is helpful to track strata and explain faults. It especially adapt to middle or deep structure interpretation.