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Airborne Hyperspectral Imaging System

SWIR Range 970 - 2500 nm

The aisaHAWK is the first small and low maintenance SWIR (970 - 2500 nm) hyperspectral sensor that provides high speed data acquisition at high sensitivity. The major advantages of the aisaHAWK are its distinctive size, high quality of data and low investment cost. aisaHAWK is the most compact SWIR hyperspectral sensor in the market, and can be quickly and easily installed in any aircraft. The aisaHAWK sensor is designed and tested to meet MIL vibration and shock specifications.

High performance

The aisaHAWK sensor employs a Mercury Cadmium Telluride (MCT) SWIR detector technology which provides the highest sensitivity and signal-to-noise ratio over the full SWIR range of 970 - 2500 nm. The transmissive imaging spectrograph is nearly independent of the polarisation in the incoming light, and provides high diffraction efficiency and uniform spectral resolution of 6 nm over the full SWIR range.

All the optics (fore optics and imaging spectrograph) and the detector assembly are temperature-stabilized. It ensures the highest radiometric stability and image quality during  flight missions

For seamless hyperspectral data in the full range of 400 to 2500 nm please see the aisaFENIX data sheet.

aisaHAWK Airborne Hyperspectral Imaging System

Gilden Photonics and Specim provide the aisaHAWK as a full, ready-to-use turnkey system. The complete aisaHAWK system consists of

  • The AisaHAWK sensor and interchangeable objectives
  • Image acquisition computer with a user-friendly interface and image acquisition software (RSCube)
  • High performance GPS / INS sensor
  • Power supply
  • CaliGeo pre-processing software
Spectrograph High efficiency transmissive imaging spectrograph. Throughput practically independent of polarization.Smile and keystone < micronsSpectrograph is temperature stabilized -
Numerical Aperture F / 2.0 -
ASpectral Range 970 - 2500 nm
Spectral Sampling / pixel 6.3 nm
Spectral Resolution 12 nm
Slit Width 30 microns
Calibration Sensor provided with wavelength and radiometric calibration file -
FOV 17.8 24.0 35.5 degrees
IFOV 0.054 0.075 0.111 degrees
Swath Width 0.31 x altitude 0.43 x altitude 0.64 x altitude -
Ground Resolution @ 1000m altitude 0.97 1.34 2.0 microns
Detector MCT detector with maintenance-free cooler -
Number of Spectral Bands 254 -
Spatial Pixels 320 -
Output 14 bits digital -
SNR 800:1 (peak)More detailed SNR data in various conditions available from Gilden Photonics -
Integration Time Adjustable, independent of frame rate -
Image Rate Up to 100 fps
Shutter Electromechanical shutter for dark background registration, user controllable by software -
Operating Modes Hyperspectral and multispectralThe operator can create application specific band configurations, and quickly change from one more or configuration to others in flight operation -
Complete System With Rack PC 640 W
Complete System With Lightweight PC 515 W
Storage -20...+ 50 °c
Operating + 5...+ 40, non-condensing °c
  • Plant mapping and distribution
  • Water quality, oil spills
  • Geology, mineralogy
  • Vegetation health
  • Forest inventory
  • Archaeology
  • Target detection
    1. Drug plantations
    2. Illegal activities
    3. Security and defence threads

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Contact us

Gilden Photonics Ltd.
Unit 13 Telford Court
9 South Avenue
Clydebank Business Park
Glasgow G81 2NR

tel: +44 (0)141 952 9475
fax: +44 (0)141 952 9400