这个联合信号具有幅度、相位时间一致性好，便于用DSP实时实现的优点。

The time of the combined A P signal is coherent, so the algorithm is implemented with digital signal processing (DSP).

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假设一个信号各道波形相同，那么信号的参数就可用其相位时间、振幅和公共波形来表示。

Signal parameters can be represented by phase time, amplitude and common waveform on the assumption that a seismic signal has same waveforms on all traces.

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此法的第一步是在信号时-空窗内用多道互相关确定信号时间多项式，此多项式决定了各道的信号相位时间；

This method includes the following steps: 1. Obtain time polynomial of signal using cross correlation in a time-space window, the polynomial determining the phase times of signal on all traces;

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