Landslide disaster early recognition method considering interference baseline optimization

The invention relates to the technical field of reservoir bank landslide early recognition, and provides a landslide disaster early recognition method considering interference baseline optimization, and the method specifically comprises the steps: S1, data collection: employing a Hyp3 interferogram...

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Bibliographische Detailangaben
Hauptverfasser: GUO JUNQI, GUI FUYU, YANG ZHENGRONG, XI WENFEI, XIAO BO, YANG ZHIQUAN, CAO RUIHAN, HONG WENYU, JIN TINGTING
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention relates to the technical field of reservoir bank landslide early recognition, and provides a landslide disaster early recognition method considering interference baseline optimization, and the method specifically comprises the steps: S1, data collection: employing a Hyp3 interferogram stack and other data as an experimental data set for interference baseline optimization and atmospheric error correction; and S2, performing coherent baseline optimization considering the time sequence change of the vegetation coverage, calculating the vegetation coverage based on a pixel dichotomy, optimizing the coherent baseline through a WCTM method, and correcting the atmospheric delay error through an ECMWF ERA-5 product. The invention provides a WCTM coherent baseline threshold optimization method considering vegetation coverage time sequence change, atmospheric delay errors existing in an ERA-5 meteorological reanalysis product correction interferogram are introduced, interference pairs selected after coher