Analysing the amplitude and frequency of reflection waves by GM（1, 1）model
Cao Hui
Petroleum Geophysical Research Institute subordinate to Ministry of Geology and Minerals, No.21weigang, Nanjing City, Jiangsu Province, Postcode:210014
Abstract：The different variation tendencies of GM(1,1)models say that their parametersreflect different physical mechanisrns.The GM(1,1)model in grey system theory isused to analyse the geological informations indicated by the amplitudes and frequencies of reflection waves.The article describes how to construct GM(1,1)model and shows the model examples of synthetic and actual data.Synthetic data result leads to the conclusion that the GM(1,1)models of amplitude and frequency show similar variation tendencies when formation thickness changes but lithology remains unchanged,and that they exhibit quite different variation tendencies when the thickness remains unchanged but lithology changes.The geological informations indicated by amplitudes and frequencies of reflection waves in SN area are analysed on the basis of the conclusion.This method involves simple model construction,and the constructed model is characterized by good visualization and easy analysis.
曹辉. 应用GM（1,1）模型分析反射波振幅与频率特征[J]. 石油地球物理勘探, 1995, 30(1): 91-99.
Cao Hui. Analysing the amplitude and frequency of reflection waves by GM（1, 1）model. OGP, 1995, 30(1): 91-99.
