PEGASUS : REMOTE SENSING FROM A STRATELLITE AS A TOOL FOR DISASTER MANAGEMENT : PEGASUS : REMOTE SENSING FROM A STRATELLITE AS A TOOL FOR DISASTER MANAGEMENT Nicolas Lewyckyj Flemish institute for technological Research (Vito) Center for Remote Sensing and Earth Observation Processes


Overview: Overview Vito activities Remote Sensing today HALE UAV for disaster management Applications Time schedule Performances


Vito in a nutshell: Vito in a nutshell Autonomous public research company (shares 100 % owned by Flemish government) Established in 1991 based upon the non-nuclear research activities of the SCK●CEN (Belgian Nuclear Research Centre) 5-year framework contract (2001 - 2005) Bridge between scientific knowledge and industrial applications or government policy 465 people – 7 centres of expertise


Slide4: Vito : centres of expertise MEASUREMENTS AND EVALUATIONS INNOVATION AND RENOVATION


TAP: TAP


Remote Sensing today: Remote Sensing today Satellite sensors Global coverage High update rate Imagery from library QC/QA Low to medium resolution (km – m) Less precise georeferencing Fixed orbit Airborne sensors Local coverage No inherent update rate No library & long delays Unknown quality Medium to high resolution (m – cm) Very precise georeferencing Flexible UAV’s: dull, dirty & dangerous jobs


What do we need for disaster management ?: What do we need for disaster management ? Geo-information rapidly available (rapid deployment) Coverage of large areas + possibility for local dedicated missions with very high precision Very high update rate of information (images) during long periods All weather information (different sensors) Database for comparison purpose Unmanned survey if dangerous (e.g. Chernobyl in 1986)


Unmanned Aerial Vehicles: Unmanned Aerial Vehicles Originating from military background WW I RQ-5 Hunter > 3,000 hours (Irak - 2003)


Micro and Mini UAVs: Micro and Mini UAVs From EURO UVS report 2003 Mikado - Germany Black Widow – U.S.A. Micro Flying Robot - Japan


Medium range UAV’s: Medium range UAV’s From PEGASUS WORKSHOP (Mol) – Presentation Deloigne B-Hunter, Belgium


UAV : different concepts: UAV : different concepts Lift from volume Very long endurance Difficult to control Many technical challenges Lift from motion Long endurance Very flexible Some technical challenges aerostatic aerodynamic


What do we need to comply the requirements for disaster management ?: What do we need to comply the requirements for disaster management ? Flexibility (large area coverage + specific missions)  Aerodynamic types better than aerostatic types “Air traffic” security  Higher than 14 km (High Altitude) and preferably light weight Database + Information during long periods + clearance problems  Up to 8 months in the air (very Long Endurance)  Power problems  Solar energy required  Unmanned Different sensors on-board (meteorological conditions)  Large payload possibilities or small & light sensors  High Altitude - Long Endurance (HALE) Solar UAV


solar HALE-UAV projects: solar HALE-UAV projects


AeroVironment: AeroVironment Helios prototype : 96,863 ft (29500 m) in August 2001 AeroVironment ERAST programe Helios prototype : 96,863 ft (29500 m) in August 2001 maximum 45° NL, crashed in 2003


Scale model (1:2): Mercator-1 prototype : ~16 m wingspan, ~2 kg payload Scale model (1:2)


UAV technology / sensors: UAV technology / sensors Multispectral Digital Camera 20 cm pixel resolution and positioning over 2.4 km swath 10 spectral channels (450 – 1000 nm) TIR Digital Camera 2 spectral channels (3-5 µm, 8-12 µm) 1 - 2 m pixel resolution over 2.4 km swath Laserscanner 0.25 pt/m2 point density Synthetic Aperture RADAR 2.5 m ground resolution over 4.5 km swath Air quality measurements In situ


Applications of Remote Sensing: Applications of Remote Sensing


Typical applications for Hale UAV’s: : Typical applications for Hale UAV’s: Cartography Traffic survey (congestion modeling) Security (e.g. Olympic games) Channel survey Disaster management and recovery Test beds for instrumentation for µ-satellites Telecom Survey of embankments Cadaster Virtual reality (3D models) …


Multispectral camera - data: Multispectral camera - data UAV (15 cm)


Applications for aerial images: Applications for aerial images Photogrammetric mapping Change detection (damages from natural disasters, mobility, …)


Tomorrow: Tomorrow


Slide22: 2009 … 2005 2006 2007 2008 Service area


Advantages of HALE UAV systems: Advantages of HALE UAV systems Flexibility of the flying trajectories (clouds) Cheaper than satellite images Resolution and accuracy (15 cm) Near real time available on internet As much as possible automatic chain processing Continuous survey (database) + dedicated missions Relay for telecom. Synergy of sensors Mostly based on existing technology