Feature selection and pattern recognition techniques are used for classification of Ricker wavelets. Envelope and instantaneous frequency are used as the features in the classification procedure. Three feature selection techniques are used. In the information-theoretic approach, divergence and Bhattacharyya distances are used as the criteria of feature selection. Feature space transformation of the discriminant method [maximum of tr(S2-1 S1)] is used to select the optima] feature. From the discriminant method, the optimal eigenvector is selected as the optimal feature. From the experiment, the result shows that instantaneous frequency is chosen as the feature to separate 20 and 30 Hz Ricker wavelets. Using instantaneous frequency as the feature, the Bayes classification result of 20 and 30 Hz Ricker wavelets is quite good.
|出版狀態||Published - 1984|
|事件||1984 Society of Exploration Geophysicists Annual Meeting, SEG 1984 - Atlanta, United States|
持續時間: 2 12月 1984 → 6 12月 1984
|Conference||1984 Society of Exploration Geophysicists Annual Meeting, SEG 1984|
|期間||2/12/84 → 6/12/84|