实验证明，该算法不但能克服相位一致性的局限性，还提高了特征的定位精度和抗噪性能。

Experiments show that this algorithm not only can overcome the limitations of phase congruency, but also can improve the location accuracy and anti-noise ability.

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涡流检测信号中的相位信息能反映检测系统的某些特性，讨论用数字相关法提取相位特征信息。

Digital correlation method was used to extract phase information as the phase information of eddy current testing signals could reflect the characteristics of detecting system.

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双谱是一种平移不变的特征，含有丰富的相位信息，但它是二维函数，不利于模板匹配。

Bispecra is a translation-invariant character, contain abundant phase information, but it is two dimension, and misfit board match.

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