Insar-based deformation information extraction method, terminal and storage medium

A technology of information extraction and deformation, applied in radio wave reflection/re-radiation, instruments, design optimization/simulation, etc., can solve problems such as reducing the accuracy of analysis results, large safety hazards, and building hazards, so as to improve the accuracy of analysis The effect of increasing the rate, improving the processing rate, and reducing the amount of data processing
CN108153979BActive Publication Date: 2021-05-04SHENZHEN URBAN PUBLIC SAFETY & TECH INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN URBAN PUBLIC SAFETY & TECH INST CO LTD
Publication Date
2021-05-04

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Abstract

The invention discloses an InSAR-based deformation information extraction method, terminal and storage medium. The method includes: A. extracting a plurality of initial PS points of a target building; B. performing cluster analysis processing on a plurality of initial PS points, Obtain multiple aggregation points, record the number of initial PS points corresponding to each aggregation point; C, calculate the distance between two adjacent aggregation points, and calculate the difference in the number of initial PS points corresponding to two adjacent aggregation points ; Judging whether there are two adjacent aggregation points that meet the preset singular aggregation point judgment condition, the preset singular aggregation point judgment condition is that the distance is less than the preset distance threshold, and the quantity difference is greater than the preset number threshold; D, if it exists, Then remove the aggregation point corresponding to less initial PS points among the two adjacent aggregation points, and repeat step C until it does not exist. E. If it does not exist, extract deformation information according to the remaining aggregation points. The invention not only improves the processing speed, but also improves the analysis accuracy.
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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, a terminal and a storage medium. Background technique

[0002] Land subsidence, also known as ground subsidence or subsidence, is a local descending movement (or engineering geological phenomenon) that reduces the elevation of the crustal surface 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 foundation 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 in the outer wall of the building. If no reinforcement measures are taken, with the further accumulation o...

Claims

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