多道地震资料的扇形滤波是根据跨越这些道的正常时差来分辨和压制某些波.原来的方法需要对不同道采用不同的时间域滤波,现在可以避免这样作,而首先对于这些道施用一组专门的权系数和时间延迟,然后以适当的极性将它们加起来,再将这个总和道通过一个特殊的单一的时间域滤波就可以得到与原来的每两道就有一个不同的时间域滤波的复杂程序相同的输出。扇形带阻滤波也同样可以这样作. Sector filtering of multi-channel seismic data is based on the resolution and suppression of certain waves based on the normal time differences across these channels. The original method required different time-domain filtering for different channels, and this can be avoided now, Group special weight coefficients and time delay, and then add them together with the appropriate polarity, and then through a special single time domain filter can get this sum with the original every two have a different time domain Filter the same output as the complex program. Fan-shaped band-stop filter can also be done this way.