Siwei Synthetic Aperture Radar

About the Siwei

Slope radar and comprehensive monitoring solutions. Providing slope radar solutions and integrated monitoring solutions across multiple industries and diverse scenarios to ensure slope safety. The Siwei series slope deformation monitoring radar (ground-based differential interferometric radar / GB-InSAR) is based on synthetic aperture radar (SAR) imaging and differential interferometry principles. Operating under all-weather, 24/7 conditions, it provides non-contact, large-scale, and high-precision monitoring of surface deformation across high-risk areas such as landslides, unstable rock masses, and dams. Measurement results can be displayed in 3D graphics on the client interface and automatically compiled into reports based on user requirements. According to user-defined alarm thresholds, the system can issue warnings via audible, visual, and SMS alerts. Operating on SAR principles, the radar equipment first acquires 2D radar images of the monitored area. After coregistering multiple sequential radar images acquired over time, the system performs permanent scatterer (PS) selection, phase extraction, phase unwrapping, phase correction, deformation resolution, and spatio-temporal filtering to retrieve deformation data across spatial positions throughout the surveyed area. Through GIS data integration, 3D graphical conversion, automated report generation, and warning/alarm processing, the system delivers deformation and alert information to users in multiple formats.