Research status and key technologies of all-day star sensor

Author:

Zheng Xunjiang,Huang Yongqin,Mao Xiaonan,He Feng,Ye Zhilong

Abstract

Abstract The all-day star sensor can complete the star detection throughout the day to solve the problem that the sky signal is overwhelmed due to excessive sky background radiation during the daytime. In this paper, a comprehensive analysis of the status quo of the all-day star sensor is presented, and the technical indicators of the typical all-day star sensor at home and abroad are introduced. In order to improve the detection ability of daytime stars, based on the factors affecting the detection performance of star sensors throughout the day, short-wave infrared technology is used to detect weak star signals. The small field of view lens design is adopted, and the hood in the optical system is optimized to achieve an extinction ratio of 8.65×10−6. Low-contrast star map processing is performed using spectral filtering methods. The target of daytime stargazing is achieved.

Publisher

IOP Publishing

Subject

General Physics and Astronomy

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