AisaHAWK:
High performance, small and low maintenance SWIR
SPECIM's AISA systems are ruggedised spectral imaging solutions
dedicated to airborne, defence and other remote sensing applications,
producing high-quality hyperspectral images, where each singly measured
spectrum has precise, calibrated ground coordinates. The systems cover
VNIR, SWIR and LWIR spectral ranges. All AISA sensors can also be used
for ground-based hyperspectral imaging.
The system includes integrated:
• The AisaHAWK sensor
• High-performance GPS / IMU sensor
• Data acquisition and power unit with user-friendly interface
and image acquisition software
• CaliGeoPro software for pre-processing
AisaHAWK - high-speed data acquisition
at high sensitivity
Designed to provide high-quality data in the SWIR range
(970 - 2 500 nm) the spectral range at which temperature has a marked
effect on sensor stability. AisaHAWK employs sensitivity-cooled MCT
SWIR detector technology and temperature stabilized optics in order
to ensure the highest stability and signal-to-noise ratio irrespective
of flight length. The AisaHAWK pushbroom sensor is designed to meet
vibration and shock loading requirements. In addition, having the shutter
as it only moving part, there is no distortion caused by mechanical
inaccuracies of the sensor itself.
The transmissive imaging spectrograph is nearly independent of the polarization
in the incoming light, and provides high diffraction efficiency
and uniform spectral resolution of 10 nm over the full SWIR
range. All the optics (fore optics and imaging spectrograph) and the
detector assembly are temperature-stabilized this ensures the
highest radiometric stability and image quality even with varying
outside air or cabin temperatures during long flight times.
Key features
• Small size 470 mm L x 275 W x 220 mm H. 18 Kgs
• High quality data capture
• Low investment cost
• Easy installation
• Meets MIL specifications for shock and vibration
• Can be integrated with the AisaEAGLE sensor to make
a dual sensor system (see
AisaDUAL)
The fully adjustable frame rate irrespective of the exposure setting
enables flight at the most economical speed while acquiring imagery
at the optimum exposure. This technology allows the user to
adjust the frame rate, not the ground speed.
Applications
For applications requiring the highest sensitivity even in low
light conditions including forestry management, vegetation
cultivation, environmental investigations, precision farming, target
identification, water assessment and land-use planning.
Accessories
for Aisa Hyperspectral Airborne Series |
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Specifications
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AisaHAWK |
Detector |
MCT detector with maintenance-free cooler |
Spectral range |
970 - 2500 nm |
Spectral resolution |
12 nm |
Calibration |
Sensor provided with wavelength and radiometric
calibration file. |
Number of spectral bands |
254 |
Image rate |
Up to 100 images/s |
Spatial pixels |
320 |
Output |
14-bit |
Shutter |
Electromechanical shutter for dark background registration,
user controllable by software. |
Operating modes |
Hyperspectral and multispectral. Operator can create
application specific band configurations, and quickly change from
one mode or configuration to others in flight operation |
Storage temperature |
- 20 ... +50º C |
Operating temperature |
+ 5 ... +40ºC, non-condensing |
aisaHAWK
data sheet
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