New ASD FieldSpec 4 Hi-Res NG Portable Spectroradiometer
Product News Aug 26, 2015
Analytik has announced the availability of ASD's new FieldSpec 4 High Resolution NG portable spectroradiometer. This is designed to meet the specifications of NASA’s next generation of airborne visible/infrared imaging spectrometer.
AVIRISng is an acronym for the Airborne Visible InfraRed Imaging Spectrometer - Next Generation. It has been developed by government laboratories in the USA, NASA and JPL, to provide continued access to high signal-to-noise ratio imaging spectroscopy measurements in the solar reflected spectral range.
To complement this, ASD have introduced their FieldSpec 4 Hi-Res NG system to provide the optimal resolution match for the best possible relationship to AVIRISng. The spectral resolution achievable is now 6 nm.
The new FieldSpec 4 Hi-Res NG spectroradiometer provides enhanced spectral resolution to support accurate calibration and image classification analysis with the next generation high spectral resolution hyperspectral sensors.
Higher resolution hyperspectral sensors yield greater precision for remote sensing classification applications, producing more information from every pixel generated in an image than ever before.
In order to take advantage of the full potential of these next generation sensors, measurements from ground based instrumentation need to meet or exceed the sensor’s spectral resolution. In the absence of this resolution equality, data is interpolated during post processing and vital spectral information can be smoothed and lost.
The enhanced spectral resolution of the FieldSpec 4 Hi-Res NG meets the rigorous demands of the next generation hyperspectral imaging systems such as AVRISng and HySpex ODIN-1024.
In addition to superior spectral resolution, the FieldSpec 4 Hi-Res NG, like all ASD spectroradiometers, incorporates fast scanning gratings and graded index InGaAs photodiode SWIR detectors to provide the smallest available spectral sampling interval in a field portable device with 1,875 measured wavelengths over the full 350 nm to 2,500 nm spectral range, ensuring detection of even the most subtle spectral features. This combination of high spectral resolution and small spectral sampling interval provides superior performance when accuracy really matters.
The higher resolution of the FieldSpec 4 Hi-Res NG will be useful for many additional applications for both contact measurements and non-contact measurements including mineral mining, studying soils properties and agricultural land/canopy mapping.
Speaking about the new generation FieldSpec 4 product, Analytik product specialist, Hiran Vegad, says “the new FieldSpec 4 is the ‘catch-all-super’ spectroradiometer that covers contact and non-contact measurements of all previous ASD spectroradiometers and spectrometers. The exceptional speed, sensitivity, ruggedness, portability and superior spectral quality of the FieldSpec 4 Hi-Res NG, now with higher resolution, provides the ultimate instrument opening the door for many Visible/NIR applications that previously were not possible with one instrument.”