Results 21 to 30 of about 26,366,925 (292)

Light source for stray light characterisation of EnMAP spectrometers [PDF]

open access: yes, 2019
EnMAP is a German hyperspectral satellite mission. The Remote Sensing Technology Institute of the German Aerospace Center is responsible for the stray light characterisation of the satellite’s spectrometers.
Andreas Baumgartner   +3 more
core   +1 more source

Commutation Behavior and Stray Inductance Analysis of a FC-3L-BDC Phase-Leg PEBB

open access: yesEnergies, 2022
The bidirectional dc-dc converter is a critical component for extending the use of renewable energy and improving the efficiency of high-power electronic systems.
Haitao Liu   +5 more
doaj   +1 more source

A Fast Star-Detection Algorithm under Stray-Light Interference

open access: yes, 2023
The interference caused by stray light leads to the invalid attitude of star sensors in orbit, thus affecting the attitude control of satellites. In order to overcome this problem, this paper proposes a fast star-detection algorithm with strong stray ...
Ling Lin   +5 more
core   +1 more source

Revealing the Spectral State Transition of the Clocked Burster, GS 1826-238, with NuSTAR StrayCats

open access: yesThe Astrophysical Journal, 2023
We present the long-term analysis of GS 1826-238, a neutron star X-ray binary known as the Clocked Burster , using data from NuSTAR StrayCats. StrayCats, a catalog of NuSTAR stray light data, contains data from bright, off-axis X-ray sources that have ...
S. B. Yun   +6 more
doaj   +1 more source

Backscattering Estimation of a Tilted Spherical Cap for Different Kinds of Optical Scattering

open access: yesOptics, 2022
In many optical engineering applications, a spherical cap shaped optical element is widely used such as concave or convex mirrors in reflective optics. Such an element can also tilt around the vertex which corresponds to an off-axis optical design.
Rongkuan Leng   +5 more
doaj   +1 more source

Stray Light Analysis and Suppression of Panoramic Annular Lens

open access: yesActa Optica Sinica, 2013
A new stray light analysis method and some suppression principles of panoramic annular lens (PAL) are introduced in this paper. The proposed method is to find stray light paths which are caused by ray splitting on two refractive surfaces of the PAL block and then cut them off.
Zhi, Huang   +3 more
openaire   +2 more sources

Stray light analysis of multi-spectral optical filters

open access: yes, 2022
S.199-215Multi-spectral optical filters are an essential component for spaceborne optical imaging. The performance of a multi-spectral camera mainly depends on the performance of its optical system. Performance criteria not only involve the resolution of
Merschdorf, Matthias   +2 more
core   +1 more source

Analysis and Reduction of Solar Stray Light in the Nighttime Imaging Camera of Luojia-1 Satellite

open access: yesSensors, 2019
As one of the experimental payloads on Luojia-1 satellite, the nighttime imaging camera works with a high sensitivity to acquire nighttime light on earth.
Xing Zhong   +6 more
doaj   +1 more source

Contrôle et analyse de lumière parasite dans un télescope anastigmate à trois miroirs [PDF]

open access: yes, 2021
peer reviewedOff-axis three-mirror anastigmat (TMA) telescopes provide excellent correction of aberrations over a large field-of-view in one direction.
Clermont, Lionel   +2 more
core   +1 more source

Fiber-based stray light suppression in spectroscopy using periodic shadowing [PDF]

open access: yes, 2021
Stray light is a known strong interference in spectroscopic measurements. Photons from high-intensity signals that are scattered inside the spectrometer, or photons that enter the detector through unintended ways, will be added to the spectrum as an ...
Kim, Haisol   +33 more
core   +1 more source

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