Plateau complex climate environment under airborne millimeter wave sar disaster identification system and method

By combining airborne millimeter-wave SAR system with plateau meteorological parameters and DEM data for signal and terrain correction, a multi-dimensional coupled feature set is constructed. Using a lightweight deep learning network, the problems of low imaging accuracy and insufficient identification accuracy in plateau disaster identification are solved, and efficient and intelligent disaster identification and change detection are achieved.

CN121806015BActive Publication Date: 2026-05-19CHENGDU UNIV OF INFORMATION TECH
4 Cites 0 Cited by

Patent Information

Application Number
CN202610289480.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-03-11
Publication Date
2026-05-19
Estimated Expiration
2046-03-11

AI Technical Summary

Technical Problem

Existing disaster identification technologies suffer from low imaging accuracy and insufficient identification accuracy in the complex climate environment of plateaus. Optical remote sensing has blind spots, spaceborne SAR has long revisit cycles and limited spatial resolution, millimeter-wave SAR signals are easily affected by weather, and traditional algorithms lack adaptability and have low automation levels, making it difficult to meet the needs of rapid response and fine observation of plateau disasters.

Method used

An airborne millimeter-wave SAR system was used, combined with plateau meteorological parameters and digital elevation model (DEM) data, to perform signal correction and terrain correction, construct a multi-dimensional coupled feature set of scattering-texture-terrain, and use a lightweight deep learning network for disaster identification, dynamically adjusting the weight of the loss function to adapt to the complex terrain of the plateau.

Benefits of technology

It improves imaging accuracy and disaster identification accuracy in complex plateau environments, realizes efficient and intelligent disaster area identification and change detection, and adapts to real-time response under complex plateau climate conditions.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The application discloses a highland complex climate environment airborne millimeter wave SAR disaster identification system and method, relates to the technical field of disaster identification, and comprises a data acquisition module, a meteorological correction module, a SAR imaging module, a feature extraction module and a lightweight disaster identification module.The meteorological correction module is used for constructing a SAR signal highland meteorological correction model, correcting airborne millimeter wave SAR echo data, and obtaining first corrected millimeter wave SAR data.The SAR imaging module is used for correcting the first corrected millimeter wave SAR data based on target region DEM data correction, and generating a millimeter wave SAR image.The feature extraction module is used for constructing a scattering-texture-terrain multi-dimensional coupling feature set.The lightweight disaster identification module is used for identifying and outputting a disaster region segmentation graph and a pre-disaster and post-disaster change region graph.The disaster identification system realizes real-time correction of SAR data by integrating meteorological correction into a SAR imaging chain, improves the accuracy of SAR imaging, and improves the precision and real-time performance of highland disaster identification under complex terrain conditions by using the constructed multi-dimensional coupling feature set and the lightweight disaster identification model.
Need to check novelty before this filing date? Find Prior Art