Methods and systems for leakage analysis of urban pipelines and storage media

A system for leakage analysis of an urban pipeline, comprising:

• an obtaining module configured to obtain sample signal data of an original signal and a first waveform diagram corresponding to the sample signal data;
• a processing module configured to
• obtain at least two first components and a second component by processing the sample signal data based on preset iteration operations;
• determine a mutual information entropy of two adjacent first components in the at least two first components;
• determine high-frequency signal data of the original signal based on the mutual information entropy;
• and
• determine an effective characteristic signal and a second waveform diagram corresponding to the effective characteristic signal based on the high-frequency signal data and the sample signal data;
• and
• a determination module configured to
• determine whether the urban pipeline leaks based on the second waveform diagram;
• and
• in response to that the urban pipeline leaks, determine a leakage aperture of the urban pipeline based on the effective characteristic signal.