The effect of bandwidth division on the improvement of the frequency spectrum utilization is analyzed under the condition of the multi-access interference and Gaussian white noise.

分析了在信道存在加性白噪声和多址干扰的条件下，频带细化对提高频谱利用率的作用。

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In the case that the signal-to-noise ratio and the number of times of superimposition are both rather low, the routine processing is not effective, and frequency division processing may be used.

在地震资料信噪比比较低，叠加次数比较低的情况下，常规处理效果不好，可以采用分频处理。

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