What is Radar Interferometry?
The acquisition and interpretation of radar images to measure movement of the ground and structures for a variety of applications:
• Retrospective analysis - utilise data acquired by satellite since 1992 to identify historic movements.
• Long term deformation trend analysis over large areas (unlimited target size).
• Extremely accurate monitoring (<1mm) in real time.
• Dynamic monitoring of structures - deformation (<1mm accuracy) and frequency response in real time.
Why Use Radar?
• Remote sensing eliminates safety and restrictive site access issues and allows immediate start to monitoring.
• High density of data points can be acquired providing flexibility to monitoring programme.
• Obtain valuable historic data to inform current and future engineering decisions
• Resolve long running disputes / claims.
• Real time data can be linked to early warning systems.
• Radar data can be displayed on GIS or within 3D DEMs and combined with other survey / monitoring data.
Where To Use Radar?
• Restricted sites - railways, roads, bridges, ports, runways, buildings.
• Dynamically loaded targets - bridges, dams, slopes, skyscrapers.
• Large target areas - reclaimed land, regional studies, asset protection
