Asian Surveying & Mapping
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June 6th, 2014
Urban Infrastructure Monitoring with Space-based Radar – Free Webinar

 Urban infrastructure monitoring is a critical problem for rapidly growing cities, and new techniques are required that provide insight into the state of the infrastructure that so many people rely on. MDA has developed a number of techniques that people responsible for managing urban infrastructure can use to better understand the state of their environment. Most prominently, MDA uses InSAR, a radar technique that uses two or more SAR images to generate maps of surface deformation, using differences in the phase of the waves returning to the satellite. This technique allows us to measure millimetre-to-centimetre-scale changes in deformation in the urban environment. Examples of this include surface deformation on airport runways, movement in bridges and subsidence of tunnels for mass transit.

MDA Geospatial Services is one of the world’s leading InSAR providers, and delivers operationally-focused InSAR solutions to customers across the globe. During this webinar, we will review our current InSAR technique, Homogenous Distributed Scatterer (HDS)-InSAR that exploits both persistent point and distributed scatterers by using adaptive multi-looking of statistically homogenous pixel neighbourhoods. The adaptive filtering reduces the noise of smooth, low-backscatter areas such as asphalt and bare ground, while optimally preserving the spatial resolution to increase both the accuracy and geographic precision of the deformation result. We’ll also look at a number of case studies based on RADARSAT-2 image stacks that capture representative examples of urban infrastructure including buildings, bridges, tarmac, and roads.

 You can register for the webinar here: https://mda-events.webex.com/mw0401l/mywebex/default.do?siteurl=mda-events