Deformation information extracting method, terminal and storage medium based on InSAR

Abstract

The invention discloses a deformation information extracting method, terminal and storage medium based on InSAR. The method comprises the steps that A, a plurality of initial PS poinTS of a target building are extracted; B, cluster analysis processing is performed on the plurality of initial PS poinTS, multiple aggregation poinTS are obtained, the number of initial PS poinTS corresponding to eachaggregation point is recorded; C, the distance between two adjacent aggregation poinTS is calculated, and the difference value in the number of initial PS poinTS corresponding to two adjacent aggregation poinTS is calculated; it is determined whether two adjacent aggregation poinTS satisfying the preset singular aggregation point determination conditions exist, the preset singular aggregation point determination conditions are that the distance is less than the preset distance threshold, and the number difference value is greater than the preset number threshold; D, if yes, the aggregation point corresponding to less initial PS poinTS is eliminated from the two adjacent aggregation poinTS, and step C is repeated until the two adjacent aggregation poinTS do not exist; E, if not, deformationinformation is extracted according to the remaining aggregation poinTS. The deformation information extracting method, terminal and storage medium based on InSAR not only improve the processing rate,but also improve the analysis accuracy.

Description

technical field [0001] The invention relates to the technical field of synthetic aperture radar and big data analysis, in particular to an InSAR-based deformation information extraction method, terminal and storage medium. Background technique [0002] Land subsidence, also known as ground subsidence or ground subsidence, is a local downward movement (or engineering geological phenomenon) in which the elevation of the crustal surface is reduced due to the consolidation and compression of loose underground strata under the influence of human engineering economic activities. From the results, the ground subsidence affects the basic structure of the building, thereby reducing its safety performance. Especially uneven settlement, it may cause local inclination of the building and change the stress state of its foundation structure. In severe cases, cracks and cracks may appear on the outer wall of the building. If no reinforcement measures are taken, with the further accumulatio...

AI Technical Summary

Problems solved by technology

[0006] For architectural targets, if a part or the whole is deformed, there is a greater possibility that the building has a safety hazard

But if only a small range of deformation occurs, it is unlikely to cause damage to the building

Therefore, if the InSAR deformation measurement technology extracts the small-scale deformation information and analyzes and processes the small-scale deformation information, the accuracy of the analysis results will be reduced.

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