Secondary disaster early warning method based on ground-based SAR monitoring deformation data

• Main Authors: SHAO WEIXI, CHEN HUI, HUANG JIAN, XIAO XIANXUAN, WANG DONGPO
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2024
• Subjects: ALARM SYSTEMS; ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; ORDER TELEGRAPHS; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; TESTING

The invention discloses a secondary disaster early warning method based on deformation data monitored by a foundation SAR, and belongs to the technical field of geological disaster early warning, and the method comprises the following steps: carrying out the real-time monitoring of a secondary disaster unstable region through the foundation SAR, so as to obtain deformation monitoring data; constructing a displacement and time curve of the secondary disaster unstable area along with time; setting a monitoring period, and constructing a displacement change triangular area model based on a displacement and time curve; constructing an area and time curve based on the displacement change triangular area model, and respectively obtaining the change trend of the area and time curve and the displacement triangular area in the displacement and time curve according to the monitoring period; the secondary disaster development process is divided into an initial deformation stage, a constant-speed deformation stage and an