Results 81 to 90 of about 132 (101)
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Diffraction axicon as the dispersive element for imaging hyperspectrometer
Proceedings of SPIE, 2016In this paper, a modeling of the hyperspectrometer using a diffraction axicon as a dispersive element was carried out. It was also proved that a point spread function of such optical system remains almost unchanged on the image pattern, when the width is comparable to the PSF of the hyperspectrometer based on conventional diffraction grating.
Roman V. Skidanov, Veronika A. Blank
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Hyperspectrometer for the 900–1700 nm near-infrared region
Journal of Optical Technology (A Translation of Opticheskii Zhurnal), 2017We describe a short-wavelength infrared (900–1700 nm) hyperspectrometer for a variety of pure and applied research applications involving the environment, remote Earth sensing, agricultural/forest monitoring, etc. This spectrometer can be used in the laboratory, in ground-based applications, and from aircraft.
I D Rodionov, V V Egorov, A I Rodionov
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Experimental study of optical characteristics of a satellite-based Offner hyperspectrometer
Optical Technologies in Telecommunications 2017, 2018A hyperspectrometer based on the Offner scheme was investigated. Spectral characteristics were studied and calibrated using a standard spectrometer. As a result of estimating the deviations of the spectra of the imaging hyperspectrometer and the reference spectrometer, calibration coefficients were obtained. The reflectance spectra of beets, onions and
Nikolay Kazanskiy +2 more
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Onboard narrow-angle hyperspectrometer operating in the retargeting mode
Journal of Optical Technology (A Translation of Opticheskii Zhurnal), 2019A narrow-angle hyperspectrometer of the visible and near-infrared range (430–900 nm) intended both for detailed aviation monitoring of the Earth’s surface objects and for conducting ground-based research is described. Its angular field of view is four degrees.
I D Rodionov, V V Egorov, A I Rodionov
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23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2017
The sensitivity of satellite thermal infrared hyperspectrometer readings to variations of the atmospheric gas constituent amounts is considered. It is shown that the differential sensitivity coefficients of the instrument channels to variations in the density of the gas of interest is expressed through the mass absorption coefficient of this gas and an
Anatoly A Lagutin
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The sensitivity of satellite thermal infrared hyperspectrometer readings to variations of the atmospheric gas constituent amounts is considered. It is shown that the differential sensitivity coefficients of the instrument channels to variations in the density of the gas of interest is expressed through the mass absorption coefficient of this gas and an
Anatoly A Lagutin
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Simulation of spectral filters used in hyperspectrometer by decomposition on vector Bessel modes
Proceedings of SPIE, 2015The article is devoted to hyperspectrometer modeling based on the use of filters with linearly varying parameters. The point spread function depending on the spectral filter parameters is estimated. The results were obtained by decomposition of the incident radiation on vector Bessel modes.
Svetlana Khonina
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Polarization hyperspectrometers: a review
Journal of Optical Technology, 2018Several newly developed methods for expanding the volume of information during the remote probing of the Earth are considered. During the past decade and a half, approaches for the remote probing of the Earth have been used to combine hyperspectral and imaging polarimetric systems in order to obtain a complete seven-dimensional volume of data ...
G. G. Gorbunov +3 more
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Evaluating imaging quality of the offner hyperspectrometer
2016 9th IAPR Workshop on Pattern Recogniton in Remote Sensing (PRRS), 2016To improve quality of hyperspectral remote sensing and spectral-topographic recognition, novel compact and efficient imaging spectrometer schemes are necessary. The paper considers an imaging spectrometer based on the Offner scheme. Due to its compact size, imaging spectrometer with Offner configuration is promising for use in small and atmospheric ...
A. Nikonorov +6 more
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Method for Calculating the Instrument Function of a Medical Hyperspectrometer
Herald of the Bauman Moscow State Technical University. Series Instrument Engineering, 2022Hyperspectral imaging technology offers great opportunities in noninvasive disease diagnostics and scientific research. Medical hyperspectrometer operation is based on the light ability to be reflected from biological tissue and depends on how strongly the tissue absorbs/reflects the light.
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SMALL-SIZED HYPERSPECTROMETERS WITH ONLINE IMAGE REGISTRATION
Автометрия, 2023На основе анализа основных современных тенденций в сфере построения гиперспектральной аппаратуры показано, что при создании малогабаритных приборов нового поколения, ориентированных на применение в наземных системах наблюдения, перспективным является использование интегральных оптико-электронных схем и оптических узлов в планарном исполнении.
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