尝试提出各专题信息分层提取，分类结果加权叠加的方法。
The method of extracting thematic information by considering target features, and weighted-overlay class result had been put forward.
最后由信号的振幅和噪音协方差矩阵来确定每道的优化加权因子并作加权叠加。
Finally, the optimum weighting factor of each trace is determined with the signal amplitudes and noise covariance.
克希霍夫偏移中，反传播的处理就是把特定点的波场克希霍夫积分表达式作为从邻近点在邻近时间传播来的波的(加权)叠加。
In Kirchhoff migration, this is done by using the Kirchhoff integral representation of a field at a given point as a (weighted) superposition of waves propagating from adjacent points and times.
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