The invention relates to the technical field of
pipe network leakage identification, and particularly provides a
water supply pipe network leakage identification method and
system based on
satellite monitoring and a medium, and the method comprises the steps: obtaining SAR
satellite time sequence data of a target region;
processing SAR
satellite time sequence data to obtain backscattering coefficient
time sequence variation and
earth surface time sequence deformation information;
humidity abnormal points are extracted based on the time
sequence variation, and deformation abnormal points are extracted based on the deformation information; the
humidity abnormal points and the deformation abnormal points are subjected to spatial superposition screening with a
water supply pipe network buffer area, time sequence
correlation analysis is carried out after screening, and suspected leakage points are obtained; and according to a multi-parameter
decision rule, screening out points which simultaneously meet conditions of spatial proximity,
humidity anomaly, deformation anomaly and time sequence synchronization, and taking the points as high-confidence suspected leakage points. According to the method, the change of the surface humidity is reflected by using the change quantity of the backscattering coefficient, and the humidity abnormity and the
surface deformation are taken as a joint criterion, so that the accuracy of leakage point identification is greatly improved.