To detect water leaking of underground tube, the traditional method relies on the sound-electricity transformation. Therefore, detection sensitivity, depth and distance suffer great limitation.
传统的检测地下管道漏水的方法是以声—电转换为基础，这使得灵敏度、深度和距离都受到很大限制。
Gives an idea of water leakage using correlation detection method which according to the basic principle of correlation detection.
根据相关检测的基本原理，提出使用相关检测方法进行漏水检测。
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