3D: The New Near-Infrared Field Imaging Spectrometer

1995 ◽  
pp. 373-373
Author(s):  
L. E. Tacconi-Garman ◽  
L. Weitzel ◽  
M. Cameron ◽  
S. Drapatz ◽  
R. Genzel ◽  
...  
Keyword(s):  
Near Infrared ◽  
Imaging Spectrometer ◽  
Field Imaging

3D: The new MPE near-infrared field imaging spectrometer

1994 ◽  
Vol 3 (1-4) ◽  
pp. 317-318
Author(s):  
L. Weitzel ◽  
M. Cameron ◽  
S. Drapatz ◽  
R. Genzel ◽  
A. Krabbe
Keyword(s):  
Near Infrared ◽  
Imaging Spectrometer ◽  
Field Imaging

3D: The New MPE Near-Infrared Field Imaging Spectrometer

1994 ◽  
pp. 531-532 ◽  
Author(s):  
L. Weitzel ◽  
M. Cameron ◽  
S. Drapatz ◽  
R. Genzel ◽  
A. Krabbe
Keyword(s):  
Near Infrared ◽  
Imaging Spectrometer ◽  
Field Imaging

scholarly journals 3D: The New Near-Infrared Field Imaging Spectrometer

1995 ◽  
Vol 167 ◽  
pp. 373-373
Author(s):  
L. E. Tacconi-Garman ◽  
L. Weitzel ◽  
M. Cameron ◽  
S. Drapatz ◽  
R. Genzel ◽  
...  
Keyword(s):  
Near Infrared ◽  
Field Of View ◽  
Resolving Power ◽  
Plane Mirror ◽  
Two Dimensional ◽  
Imaging Spectrometer ◽  
Near Ir ◽  
Field Imaging ◽  
Calar Alto ◽  
Spatial Element

3D is a next-generation near-IR spectrometer developed at the MPE which offers, in a single integration, the opportunity to image an 8″ × 8″ field across almost the entire K-band at a simultaneous spatial resolution of 0.″5 wide strips which are then aligned optically on top of each other forming a single long slit. This long slit is then used as the input for a grating spectrometer which images it onto a two dimensional detector array. Each detector row then represents the spectrum of one spatial element of the two dimensional field of view. The central part of the optical system is the image slicer which is made of two complex plane mirror systems consisting of 16 segments each. The detector is a NICMOSIII HgCdTe array with 256 × 256 pixels. In the spectral domain the spectrometer provides a resolving power of R = 1000.Here we present not only the design of the instrument but also first data obtained during instrument commissioning at the 3.5-m Calar Alto telescope in December, 1993.

scholarly journals Laboratory Calibration of a Field Imaging Spectrometer System

Sensors ◽  
2011 ◽  
Vol 11 (3) ◽  
pp. 2408-2425 ◽  
Author(s):  
Lifu Zhang ◽  
Changping Huang ◽  
Taixia Wu ◽  
Feizhou Zhang ◽  
Qingxi Tong
Keyword(s):  
Imaging Spectrometer ◽  
Laboratory Calibration ◽  
Spectrometer System ◽  
Field Imaging

Design of a control system for a visible/near-infrared real-time imaging spectrometer

2021 ◽  
Vol 14 (0) ◽  
pp. 1-7
Author(s):  
WU Chang-kun ◽  
◽  
◽  
ZHANG Wei ◽  
HAO Ya-zhe
Keyword(s):  
Control System ◽  
Real Time ◽  
Near Infrared ◽  
Imaging Spectrometer ◽  
Real Time Imaging

Development of a Portable Field Imaging Spectrometer: Application for the Identification of Sun-Dried and Sulfur-Fumigated Chinese Herbals

2016 ◽  
Vol 70 (5) ◽  
pp. 879-887 ◽  
Author(s):  
Hongming Zhang ◽  
Taixia Wu ◽  
Lifu Zhang ◽  
Peng Zhang
Keyword(s):  
Imaging Spectrometer ◽  
Field Imaging

Wide-field imaging spectrometer for ESA's future x-ray mission: XEUS

1999 ◽  
Author(s):  
Lothar Strueder ◽  
Robert Hartmann ◽  
Peter Holl ◽  
Josef Kemmer ◽  
Peter Klein ◽  
...  
Keyword(s):  
Wide Field ◽  
Imaging Spectrometer ◽  
X Ray ◽  
Field Imaging ◽  
Wide Field Imaging

A Radiometric Calibration Model for the Field Imaging Spectrometer System

2013 ◽  
Vol 51 (4) ◽  
pp. 2465-2475 ◽  
Author(s):  
Changping Huang ◽  
Lifu Zhang ◽  
Junyong Fang ◽  
Qingxi Tong
Keyword(s):  
Calibration Model ◽  
Radiometric Calibration ◽  
Imaging Spectrometer ◽  
Spectrometer System ◽  
Field Imaging

scholarly journals Comparison of the Lunar Models Using the Hyper-Spectral Imager Observations in Lijiang, China

2020 ◽  
Vol 12 (11) ◽  
pp. 1878
Author(s):  
Yang Wang ◽  
Xiuqing Hu ◽  
Lin Chen ◽  
Yu Huang ◽  
Zhanfeng Li ◽  
...  
Keyword(s):  
Near Infrared ◽  
Spectral Ratio ◽  
Spectral Irradiance ◽  
Lunar Phase ◽  
Absorption Bands ◽  
Absorption Region ◽  
Phase Dependence ◽  
Imaging Spectrometer ◽  
Lunar Phases ◽  
Hyper Spectral

A lunar observation campaign was conducted using a hyper-spectral imaging spectrometer in Lijiang, China from December 2015 to February 2016. The lunar hyper-spectral images in the visible to near-infrared region (VNIR) have been obtained in different lunar phases with absolute scale established by the National Institute of Metrology (NIM), China using the lamp–plate calibration system. At the same time, the aerosol optical depth (AOD) is measured regularly by a lidar and a lunar CE318U for atmospheric characterization to provide nightly atmosphere extinction correction of lunar observations. This paper addressed the complicated data processing procedure in detail from raw images of the spectrometer into the spectral lunar irradiance in different lunar phases. The result of measurement shows that the imaging spectrometer can provide lunar irradiance with uncertainties less than 3.30% except for absorption bands. Except for strong atmosphere absorption region, the mean spectral irradiance difference between the measured irradiance and the ROLO (Robotic Lunar Observatory) model is 8.6 ± 2% over the course of the lunar observation mission. The ROLO model performs more reliable to clarify absolute and relative accuracy of lunar irradiance than that of the MT2009 model in different Sun–Moon–Earth geometry. The spectral ratio analysis of lunar irradiance shows that band-to-band variability in the ROLO model is consistent within 2%, and the consistency of the models in the lunar phase and spectrum is well analyzed and evaluated from phase dependence and phase reddening analysis respectively.

scholarly journals Continuing the MODIS Dark Target Aerosol Time Series with VIIRS

2020 ◽  
Vol 12 (2) ◽  
pp. 308 ◽  
Author(s):  
Virginia Sawyer ◽  
Robert C. Levy ◽  
Shana Mattoo ◽  
Geoff Cureton ◽  
Yingxi Shi ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Imaging ◽  
Retrieval Algorithm ◽  
Spatial And Temporal Variability ◽  
Imaging Spectrometer ◽  
Standard Data ◽  
Moderate Resolution ◽  
Resolution Imaging ◽  
Infrared Wavelengths ◽  
Good Agreement

For reflected sunlight observed from space at visible and near-infrared wavelengths, particles suspended in Earth’s atmosphere provide contrast with vegetation or dark water at the surface. This is the physical motivation for the Dark Target (DT) aerosol retrieval algorithm developed for the Moderate Resolution Imaging Spectrometer (MODIS). To extend the data record of aerosol optical depth (AOD) beyond the expected 20-year lifespan of the MODIS sensors, DT must be adapted for other sensors. A version of the DT AOD retrieval for the Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi-National Polar-Orbiting Partnership (SNPP) is now mature enough to be released as a standard data product, and includes some upgraded features from the MODIS version. Differences between MODIS Aqua and VIIRS SNPP lead to some inevitable disagreement between their respective AOD measurements, but the offset between the VIIRS SNPP and MODIS Aqua records is smaller than the offset between those of MODIS Aqua and MODIS Terra. The VIIRS SNPP retrieval shows good agreement with ground-based measurements. For most purposes, DT for VIIRS SNPP is consistent enough and in close enough agreement with MODIS to continue the record of satellite AOD. The reasons for the offset from MODIS Aqua, and its spatial and temporal variability, are investigated in this study.

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