GaiaField ground target large range scanning hyperspectral imaging system

GaiaField ground target large range scanning hyperspectral imaging system, that is the ground remote sensor which uses the advanced hyperspectral imaging technology. The core of the system is one imaging spectrograph, which could make the hyperspectral scanning for long distance, large range target object, and get the object imaging and spectrum information. Widely used in target recognition, camouflage and counter camouflage research application field and ground objects telemetry, ocean water remote measurement environment research field, such as crop growth condition monitoring, insect pest monitoring and a wide range of fruit and vegetable maturity monitoring, etc.
 

Model(Gaia-)	V10	V10E	N17E	N25E
Spectral Range (nm)	VNIR	VNIR	NIR	SWIR
Standard lens focal length (mm)	25	25	25	25
Vertical direction visual angle (FOVac,°)	20	20	20	20
Vertical direction visual angle resolution (IFOVac,°)	0.05	0.01-0.05	0.05	0.05
Horizontal scanning angle range(FOVal,°)	45	45	45	45
Horizontal direction instantaneous perspective(IFOVal,°)	0.1	0.05	0.05	0.05
Scanning speed(line images/s)	25-120	25-120	100	100
Scanning format(m,vertical orizontal, from10m)	3.5×8	3.5×8	3.5×8	3.5×8
Rechargeable battery full charged standby time (hours)	8	8	8	8

          There are three spectral ranges for GaiaField imaging spectrograph, VNIR (400-1000nm), NIR (900-1700nm) and SWIR (1000-2500nm).
 
GaiaField Specifications *

Portable design, equipped with long life battery, long time outdoor measurement
GaiaField ground targets large range scanning hyperspectral imager using portable design, easy to carry,also equipped with long life rechargeable lithium ion battery, up to 12 hours.

Reflectivity measurement model  

GaiaField ground target large range scanning hyperspectral imaging system is based on the natural light environment, for the reflectivity measurement of vegetation, lakes, oceans, forest and so on, through the absorption spectrum analysis. The picture on the right is a typical vegetation full-wave band reflection spectrum. With vegetation for example, research shows that, the main influencing factors for vegetation reflectivity are vegetation color characteristics, cell tissue structure and moisture content.

For the actual application of crops growth monitoring, usually can use visible - near infrared band (400-1000 nm or 400-1700 nm) for the measurement, chlorophyll monitoring and nitrogen nutrition monitoring. From the spectrum, it is blue shift and red edge phenomenon, which reflect the strength of the plant photosynthesis (i.e. plant vigor). Blue shift said weakened vitality. According to the research and application of some water, usually adopts full band (400-2500 nm) reflectivity spectrum measurement that can reflect water soluble substances, chlorophyll and suspended matter situation.

Full-wave band, provide more than 700 spectrum channels

GaiaField ground targets large range scanning hyperspectral imaging system used high resolution imaging spectrometer, in visible light band spectral resolution as high as 3 nm, in short wave infrared band can achieve 10 nm spectral resolution, therefore full-wave band can get more than 700 spectrum channels, more spectral channel means more information, which can help the researchers to gain more research details information through the continuous spectrum analysis.

 
Standard three dimensional data cube data format, can be directly processed by the ENVI software.  

440nm

550nm

670nm

720nm

750nm

GaiaField-V10-PS—Visible light-NIR ground target hyperspectral imaging system

System includes: V10 hyperspectral imaging spectrograph, data Acquisition software, tripod, rechargeable batteries. System features: Can be used for long distance, large range target object hyperspectral imaging Scanning format: 3.5m×8m (distance 10m) Vertical direction visual angle (FOVac) 20° Horizontal scanning angle range(FOVal) 45° Horizontal direction instantaneous perspective(IFOVal) 0.1° Wavelength range 400-1000 nm The scanning head could be aligned manually (pitching ±90 °, rotating ±180 °) Scanning head using tripod universal interface Rechargeable battery full charged standby 8 hours

GaiaField-V10-PS Specifications

Hyperspectral imaging system 1. Imaging spectrograph Wavelength range: 400nm-1000nm Spectral resolution: 9nm Spectrum sampling point: 0.63nm Slit height: 9.8mm Slit width: 50μm Numerical Aperture: F/2.8 Total Efficiency >50% Stray light: <0.5% 2. Lens Wavelength range:400-1000nm Focal length: 25mm Aperture:F/1.4~F/17 C-Mount Transmittance:≥85% vision angle: 20° 3. CCD Type: room temperature CCD Pixels in Full Frame: 1392x1040 Pixel Size: 6.45*6.45μm Interface: Ethernet Frame Rate: 25 –120fps Exposure time range:1μs-120s A/D: 14bits Lens mount: C-Mount Dynamic range: 60dB Spectral image acquisition software 1. Spectrum and image data acquisition in real-time. 2. Spectral data visualization and storable.

3. Selecting any position in the image by mouse, thesoftware can show the spectrum of that location. 4. Camera parameters settings, control of sample stage speed. 5. Datacubes are saved in ENVI compatible format that allows further processing by several software packages for hyperspectral data processing. Integrated automatic scanning Horizontal scanning angle range: 45° Scanning angle resolution 0.1° USB2.0 Tripod maximum load >10kg Tripod minimum height: 0.6m Rechargeable battery full charged standby 8 hours Image processor CPU: 2.0GHz Memory: greater than or equal to greater than or equal to 2GB Hard disk capacity: 500GB Discrete graphics: no less than 512M independent video memory Weight: 8Kg Portable integration design

GaiaField-V10E-PS—Visible light-NIR enhanced ground target hyperspectral imaging system

System includes: V10 hyperspectral imaging spectrograph, data Acquisition software, tripod, rechargeable batteries. System features: Can be used for long distance, large range target object hyperspectral Imaging The scanning head could be aligned manually (pitching ±90 °, rotating ±180 °) Scanning format: 3.5m×8m (distance 10m) Vertical direction visual angle (FOVac) 20° Horizontal scanning angle range(FOVal) 45° Horizontal direction instantaneous perspective(IFOVal) 0.05° Wavelength range 400-1000 nm Scanning head using tripod universal interface Rechargeable battery full charged standby 8 hours

GaiaField-V10E-PS—Specifications

Hyperspectral imaging system 1. Imaging spectrograph Wavelength range: 400nm-1000nm Spectral resolution: <3nm Spectrum sampling point: 0.63nm Slit height: 14.2mm Slit width: 30μm Numerical Aperture: F/2.4 Total Efficiency >50% Stray light: <0.5% 2. Lens Wavelength range:400-1000nm Focal length: 25mm Aperture:F/1.4~F/17 C-Mount Transmittance:≥85% vision angle: 20° 3. CCD Type: room temperature CCD Pixels in Full Frame: 1392x1040 Pixel Size: 6.45*6.45μm Interface: Ethernet Frame Rate: 25 –120fps Exposure time range:1μs-120s A/D: 14bits Lens mount: C-Mount Dynamic range: 60dB Spectral image acquisition software 1. Spectrum and image data acquisition in real-time. 2. Spectral data visualization and storable.

3. Selecting any position in the image by mouse, the software can show the spectrum of that location. 4. Camera parameters settings, control of sample stage speed. 5. Datacubes are saved in ENVI compatible format that allows further processing by several software packages for hyperspectral data processing. Integrated automatic scanning Horizontal scanning angle range: 45° Scanning angle resolution 0.05° USB2.0 Tripod maximum load >10kg Tripod minimum height: 0.6m Rechargeable battery full charged standby 8 hours Image processor CPU: 2.0GHz Memory: greater than or equal to 2GB Hard disk capacity: 500GB Discrete graphics: no less than 512M independent video memory Weight: 8Kg Portable integration design