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MA(q)模型参数的估计——一种混合相位子波反演算法
The estimation for MA(q) model parameters——An inverse arithmetic on mixed-phase wavelets
【摘要】 笔者在文中讨论了混合相位子波A的反演问题.利用高阶累积矩获得近似反子波B(0),再通过B(0)与地震记录S褶积生成数据S=B(0)*S,最后对模型S=C(0)*r采用统计递归算法SRA[14]得到介入子波C(0)=(C,C*).真实子波A的估计通过解方程C=B(0)*A得到.如果混合相位子波A的长度有限,我们的算法可获得相当满意的结果.
【Abstract】 In the paper,an inverse problem on mixed-phase wavelet A is discussed.An approximate reverse wavelet B(0) is obtained by using higher-order accumulate moments,data S is generated by S=B(0)*S,and a middle wavelet C(0)=(C,C*) is obtained through using SRA arithmetic for the model S=C(0)*r.Estimation on the true wavelet A is obtained by solution for the equation C=B(0)*A.If the length of mixed-phase wavelet A is finite,a quite good result can be obtained by the arithmetic in the paper.
【关键词】 混合相位子波;
褶积模型;
高阶累积矩;
介入子波;
Abel群;
【Key words】 mixed-phase wavelet; higher-order accumulate moment; convolution model; middle wavelet; Abel wavelet group;
【Key words】 mixed-phase wavelet; higher-order accumulate moment; convolution model; middle wavelet; Abel wavelet group;
- 【文献出处】 重庆交通学院学报 ,Journal of Chongqing Jiaotong University , 编辑部邮箱 ,2006年05期
- 【分类号】P631.443
- 【被引频次】2
- 【下载频次】63