Research on Time Sequence Design Method of Dynamic Simulation Scene for Starlight Navigation

Authors

Xiaoting Su, Shanghai Electro-mechanical Engineering Institute, Shanghai 201109, China
Xiaowei Zhang, Shanghai Electro-mechanical Engineering Institute, Shanghai 201109, China
Yi Tian, Shanghai Electro-mechanical Engineering Institute, Shanghai 201109, China; National Key Laboratory of Automatic Target Recognition, Shanghai 201109, China
Qi Li, Shanghai Electro-mechanical Engineering Institute, Shanghai 201109, China
Shuaihao Wang, Shanghai Electro-mechanical Engineering Institute, Shanghai 201109, China; National Key Laboratory of Automatic Target Recognition, Shanghai 201109, China

Abstract

Abstract: To solve the problem of misidentification of star maps due to time sequence mismatch in the hardware-in-the-loop simulation system of star navigation, where star trackers with different shutter types (global shutter and rolling shutter) and star simulators with varying refresh display methods (whole frame refresh and line sweep refresh) operated without synchronization, a time sequence design method of the dynamic simulation scene for starlight navigation without the need of external synchronization signals was proposed. The method could design the refresh frequency and duty cycle of the corresponding star simulators according to the detector integration time of the tested star trackers to ensure that the star trackers could receive multiple complete cycles of star simulator modulated display images within one exposure time. To address the time sequence mismatch between the frames caused by the time-consuming rendering of a single frame of the dynamic simulation scene, a test method was proposed for the delay time of the dynamic simulation scene of star simulators, which compensated for the delay time of the scene rendering and reduced the star map errors observed by the star trackers in the current moment, thus ensuring the correctness of the navigation model solving. The results of simulation experiments have shown that the method can realize the correct solving of the four elements of the navigation of the star trackers, which has certain theoretical value and guiding significance for the time sequence design of the dynamic simulation scene of the starlight navigation.

Recommended Citation

Su, Xiaoting; Zhang, Xiaowei; Tian, Yi; Li, Qi; and Wang, Shuaihao (2025) "Research on Time Sequence Design Method of Dynamic Simulation Scene for Starlight Navigation," Journal of System Simulation: Vol. 37: Iss. 11, Article 20.
DOI: 10.16182/j.issn1004731x.joss.24-1414
Available at: https://dc-china-simulation.researchcommons.org/journal/vol37/iss11/20

First Page

2946

Last Page

2955

CLC

TP391.9; V241.6

Recommended Citation

Su Xiaoting, Zhang Xiaowei, Tian Yi, et al. Research on Time Sequence Design Method of Dynamic Simulation Scene for Starlight Navigation[J]. Journal of System Simulation, 2025, 37(11): 2946-2955.

Corresponding Author

Tian Yi

DOI

10.16182/j.issn1004731x.joss.24-1414