Patent ID: 11935191
Assignee: ZHEJIANG UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 2:
3. The data processing method, as recited in claim 1, wherein in the step 2), a three-dimensional coordinate system is established for the initial elevation data collected in the analogue modelling experiment of the hypergravity geological structure; each elevation point in the initial elevation data has an initial two-dimensional plane coordinate and an initial three-dimensional elevation; wherein a correction method for each elevation point comprises steps of:
I, according to the initial two-dimensional plane coordinate and the initial three-dimensional elevation of the elevation point, calculating a plane coordinate offset difference of the elevation point caused by the curved model surface;
II, according to the initial two-dimensional plane coordinate of the elevation point and the plane coordinate offset difference calculated in the step I, calculating a two-dimensional plane coordinate of an orthographic point corresponding to the elevation point;
III, according to the two-dimensional plane coordinate of the orthographic point calculated in the step II and known surface arc equation as well as arc length formula of the top surface of the curved table, calculating a corrected two-dimensional plane coordinate of the elevation point and an elevation projection difference; and
IV, according to the initial three-dimensional elevation of the elevation point and the elevation projection difference calculated in the step III, calculating a corrected three-dimensional elevation of the elevation point;
wherein the corrected elevation data of the elevation point are finally obtained by combining the corrected two-dimensional plane coordinate and the corrected three-dimensional elevation of the elevation point.