Synthetic aperture radar sea ice drift detection method, system, device and application

• Main Authors: LI XIAONA, ZHANG XI, ZHU YIXUN, MENG JUNMIN
• Format: Patent
• Language: Chinese; English
• Published: 05.03.2021
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; CALCULATING; COMPUTING; COUNTING; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; HANDLING RECORD CARRIERS; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; PRESENTATION OF DATA; RADIO DIRECTION-FINDING; RADIO NAVIGATION; RECOGNITION OF DATA; RECORD CARRIERS; TESTING

The invention belongs to the technical field of sea ice dynamic characteristic data processing, and discloses a synthetic aperture radar sea ice drift detection method, system, device and application,and the method comprises the steps of carrying out the resolution reduction of SAR data, and extracting an ice crack region in a low-resolution image; an ice crack area being usually of a long-stripcharacteristic and having high rotation non-deformation and high anti-noise capacity, using a PM method for carrying out first-time drift estimation on a low-resolution SAR image on a regular grid, and extracting the overall drift direction and speed of an ice area; and searching and matching regions in the original resolution SAR image by using the extracted principal direction constraint FT method to obtain a sea ice drift result. High-resolution sea ice drifting automatic detection is achieved from massive SAR data, and the invention meets an important demand for mastering polar region seaice dynamic properties and