Author:
Fu Zongqiang,Yang Xiubin,Wu Mo,Yan Andong,Du Jiamin,Gao Suining,Tang Xingyu
Abstract
The rolling shutter effect decreases the accuracy of the attitude measurement of star trackers when they work in rolling shutter exposure mode, especially under dynamic conditions. To solve this problem, a rolling shutter effect correction method based on particle swarm optimization is proposed. Firstly, a collinear reverse installation method between the star tracker and the satellite is proposed, which simplifies the relationship between the velocity of the star centroid and the star tracker angular velocity. Next, the centroid error model is obtained by the star centroid velocity. Based on the centroid error model and angular distance invariance, the loss function of the centroid error is proposed. Then, the particle swarm optimization algorithm is used to determine the star tracker angular velocity by minimizing the loss function. Finally, the simulation and experiments are carried out to verify the proposed method. The experimental results show that the convergence times of the algorithm are less than 50 and the root mean square error (RMSE) of the angular velocity is better than 0.02°/s when the angular velocity of the star tracker is no more than 5°/s.
Funder
Natural Science Foundation of Jilin Province
Subject
General Earth and Planetary Sciences
Reference36 articles.
1. Attitude and Size Estimation of Satellite Targets Based on ISAR Image Interpretation;IEEE Trans. Geosci. Remote Sens.,2022
2. Parameters Estimation of Nutational Satellite Based on Sun Sensor;IEEE Trans. Instrum. Meas.,2022
3. Kouyama, T., Kanemura, A., Kato, S., Imamoglu, N., Fukuhara, T., and Nakamura, R. (2017). Satellite Attitude Determination and Map Projection Based on Robust Image Matching. Remote Sens., 9.
4. A super-fast optimal attitude matrix in attitude determination;Meas. Sci. Technol.,2021
5. Implementation of a real-time star centroid extraction algorithm with high speed and superior denoising ability;Appl. Opt.,2022
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