| Citation: | LI Yang, LIAO Zhibo, MU Shengbo, et al. Stray light suppressing technique and simulation for star sensor[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(12): 2620-2624. doi: 10.13700/j.bh.1001-5965.2015.0793(in Chinese)
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Star sensor used for deep space stars exploration is a faint signal detector. Star sensor is sensitive to slender stray light, and therefore, the stray light suppressing ability is a key influencing factor of the exploration ability. Through the point source transmittance (PST), the suppression indicators of the star sensor are calculated by the standard of the target brightness which is detected 7m.5 stars. Based on the standard evaluation, an effective suppressing technique is proposed, which includes the design of baffle, stop and special artificial processes for critical objects. In the end, the simulation results are analyzed and calculated with Lighttools software. The results indicate that the stray light suppressing technique is effective, and the results can meet the needs of detecting 7m.5 stars.
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