Basic Ray Tracing for Stray Light Analysis

2013 ◽  
Keyword(s):  
Ray Tracing ◽  
Stray Light

Ray tracing based simulation of stray light effect for geostationary ocean color imager

2013 ◽  
Author(s):  
Eunsong Oh ◽  
Jinsuk Hong ◽  
Sug-Whan Kim ◽  
Seongick Cho ◽  
Joo-Hyung Ryu
Keyword(s):  
Ray Tracing ◽  
Ocean Color ◽  
Stray Light ◽  
Light Effect

Usage of Ray Tracing Transfer Matrix to Mitigate the Stray Light for ITER Spectroscopy

2016 ◽  
Vol 56 (9) ◽  
pp. 837-845 ◽  
Author(s):  
S. Kajita ◽  
E. Veshchev ◽  
R. Barnsley ◽  
M. Walsh
Keyword(s):  
Ray Tracing ◽  
Transfer Matrix ◽  
Stray Light

scholarly journals Novel ray tracing method for stray light suppression from ocean remote sensing measurements

2016 ◽  
Vol 24 (10) ◽  
pp. 10232 ◽  
Author(s):  
Eunsong Oh ◽  
Jinsuk Hong ◽  
Sug-Whan Kim ◽  
Young-Je Park ◽  
Seong-Ick Cho
Keyword(s):  
Remote Sensing ◽  
Ray Tracing ◽  
Stray Light ◽  
Ray Tracing Method ◽  
Ocean Remote Sensing ◽  
Tracing Method

Principal-Component Calculation of Stray Light for Infrared Detection

2011 ◽  
Vol 138-139 ◽  
pp. 387-390
Author(s):  
Jin Xing Niu ◽  
Heng Can Li
Keyword(s):  
Monte Carlo ◽  
Ray Tracing ◽  
Detection System ◽  
Principal Component ◽  
Stray Light ◽  
Infrared Detection ◽  
Light Irradiance ◽  
Stray Radiation

Analysis and calculation of stray light is important to improve the performance of infrared detection system. In this article, we mainly discussed two sources: earth and atmosphere emission and thermal stray radiation. A method based on Monte Carlo ray-tracing in TracePro is proposed to calculate the irradiance of detector arisen from earth and atmosphere emission. The thermal stray light irradiance on detector can also be obtained by simulation in TracePro.

Ray tracing analysis of stray light for charge exchange recombination spectroscopy on ITER

2015 ◽  
Vol 57 (4) ◽  
pp. 045009 ◽  
Author(s):  
Shin Kajita ◽  
Maarten De Bock ◽  
Manfred von Hellermann ◽  
Andrei Kukushkin ◽  
Robin Barnsley
Keyword(s):  
Ray Tracing ◽  
Charge Exchange ◽  
Stray Light

scholarly journals On the testing and validation of stray light attenuation for microsatellite star tracker baffles.

2021 ◽  
Author(s):  
Martin Marciniak
Keyword(s):  
Ray Tracing ◽  
Light Attenuation ◽  
Analytical Techniques ◽  
Stray Light ◽  
Surface Scattering ◽  
Star Tracker ◽  
Preliminary Design ◽  
False Detection Rate ◽  
Engineering Model ◽  
False Detection

This thesis describes strategies to perform stray light testing in an earthbound laboratory while accounting for atmospheric and surface scattering phenomena that make these measurements difficult. We present a method to analyze and predict the stray light performance for a baffled star tracker optical system. This method involves a hybrid stray light analysis procedure that combines experimental measurements of a star tracker lens optics and uses ray-tracing to obtain attenuation curves. We demonstrate these analytical techniques using an engineering model ST-16 star tracker from Sinclair Interplanetary along with a baffle prototype. The system attenuation curve's accuracy is validated by comparing independently measured baffle attenuation curves with equivalent ray-tracing models. Additionally, exclusion angles are defined for the ST-16 sensor by calculating the false detection rate that varies with system attenuation levels. These techniques provide a versatile alternative to conventional testing for preliminary design stages for a star tracker baffle that emphasizes the use of modest infrastructure.

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