.png){kind=icon}
返回
S-curve centroiding error correction for star sensor
.png){kind=icon}
PRE
AI
DOI：10.1016/j.actaastro.2014.03.002.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
A star centroiding error is a critical error in determining the accuracy of star sensors. As an important component of the systematic centroiding errors, the S-curve error is known for its well-regulated sine shape in a period of a pixel. On the basis of the frequency domain analysis, the analytical expression of an S-curve error is given in this paper. Accordingly, the sources resulting in the S-curve error are comprehensively investigated in this study along with their specific role in determining the characteristics of the S-curve error. Experiments are carried out using a real star sensor with the help of a precise turning table and a starlight simulator. The S-curve error data are collected, and a corresponding correction model in the form of a sine function is developed on the basis of the analytical expression. The correction of the S-curve error is well verified by the additional collected test data in the entire field of view (FOV) with an improvement of at least 35.7% in the star centroiding accuracy. Consequently, the calibration accuracy of the star sensor is also improved by 31.7% after the S-curve error correction. Further experiments are performed to investigate the S-curve errors of stars having saturated pixel energy, and the results of these experiments agree with those of the simulations to a large extent. All the analytical and experimental results indicate that the S-curve error has significant regularity and can be corrected using the proposed method. (C) 2014 IAA. Published by Elsevier Ltd. All rights reserved.
Keyword:
Star sensor
Centroiding
S-curve error
Error correction
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3.4
论文数:
1.2W
被引数:
2.1W
机构
引用论文
分享收藏Enhancement of the centroiding algorithm for star tracker measure refinement.png)
ACTA ASTRONAUTICA
ACTA ASTRONAUTICAIF3.4
PREAI
分享收藏Elastic Constants and Thermodynamic Properties of Cu, Cu<sub>2</sub>O and CuO from First-Principles CalculationsCu，Cu2O和CuO的弹性常数和热力学性质的第一性原理计算
PREAI
分享收藏Systematic error analysis and compensation for high accuracy star centroid estimation of star tracker星跟踪器高精度星质心估计的系统误差分析与补偿
PREAI
分享收藏Anti-peptide antibodies to the P4502D subfamily in rat, dog and man大鼠、犬和人体中P4502D亚家族的抗多肽抗体Xenobiotica
XenobioticaIF0
PREAI
分享收藏 没有更多内容
没有更多内容