利用伪随机多频信号作为场源的多频相对相位谱观测法拥有相对相位观测法的优点，同时为异常源的区分提供丰富的信息。

PRMF relative phase spectrum IP method with PRMF signal as excitation has the same advantage of relative phase IP method, and offer rich information for the discrimination of anomaly source.

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多频激电相对相位谱法充分发挥了伪随机多频信号作为电法勘探场源的优点，可在找水，找矿等勘探中发挥重要作用。

PRMF relative phase spectrum IP show the advantage of PRMF signal as source of electrical exploration, can play important in groundwater exploration, mineral exploration, and so on.

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多频激电相对相位谱法采用上述信号作为场源，充分反映了该信号作为电法勘探场源的优点。

In induced polarization method, multi-frequency relative phase spectrum method use above signal as field source, showed the advantage of PRMF signal used as field source for electrical exploration.

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