SEBASS Airborne Platforms

1
SEBASS Airborne Platforms
Twin Otter
SHARP Photo Not Available

• SEBASS developed as IRD SHARP
• 3.0 µm - 13.6 µm spectral coverage 3.0 - 13.6
  µm spectral coverage
• 2,000 - 12,500 ft altitude 20,000 - 65,000 ft
  altitude
• 2 - 12.5 ft GSD (1 mrad IFOV) 2 - 6.5 ft GSD
  (100 µrad IFOV)
• Direct downlooking Down and oblique views
• Pushbroom nadir scan Backscanned whiskbroom
• NESR 0.4 - 0.7 µflicks NESR 0.1 - 1
  µflicks
• (depends on aircraft speed) (depends on
  mirror scan rates)

2
SEBASS

• Capabilities
• MWIR/LWIR Hyperspectral Imager
• Airborne day/night capability
• Gas identification
• Solid material identification
• Precision thermometry T 0.01C
• Extrapolated to space system design
• Utilization
• Surveillance / Remote Sensing
• Gas effluent detection
• Geological / mineral mapping
• Battlespace characterization

3
SEBASS Systems
AHI Twin Otter - Low Altitude
Analysis Center
Ground Based Mobile
4
SHARP

• High fidelity measurement instrument
• Calibrated, low noise, well characterized
• Addresses signature phenomenology
• Background false alarm statistics
• Atmospheric path effects (mean and variance)
• Broad in situ signature database development
• Sensor and algorithm performance limits

Spatially Enhanced Broadband Array Spectrograph
System (SEBASS) High Altitude Research Project
(SHARP)

• Supports many operational scenarios

5
A SEBASS Literature Reference
Hackwell, J. A., Warren, D. W., Bongiovi, R. P.,
Hansel, S. J., Hayhurst, T. L., Mabry, D. J.,
Sivjee, M. G., and Skinner, J. W. (1996).
LWIR/MWIR Imaging Hyperspectral Sensor for
Airborne and Ground-Based Remote Sensing. Imaging
Spectrometry II, Proceedings of the International
Soc. for Optical Eng., Vol. 2819102-107.