Star centroid error compensation based on the star triangle internal angles for celestial navigation with aero-optical degradation

被引：6

作者：

Li, Tianqi ^{[1
]}

Zhang, Chunxi ^{[1
]}

Tian, Yizhuo ^{[1
]}

Yang, Yanqiang ^{[1
]}

机构：

[1] Beihang Univ, Sch Instrumentat & Optoelect Engn, Sci & Technol Inertial Lab, Beijing 100191, Peoples R China

来源：

MEASUREMENT | 2023年 / 206卷

基金：

中国国家自然科学基金;

关键词：

Aero-optic effect; Star sensor; Celestial navigation; Centroid error compensation; BOUNDARY-LAYER; COMPUTATION; SIMULATION;

D O I：

10.1016/j.measurement.2022.112229

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, to solve the correction problem of star vector error induced by the aero-optic effect under hypersonic conditions, and to improve the navigation accuracy further, a novel method of star centroid error correction is proposed. The method is based on the star triangle internal angles, which can effectively use the prior information to estimate the aero-optical star centroid error. The method is verified by the Monte Carlo simulation and Hardware-In-Loop simulation. According to Hardware-In-Loop simulation, the star centroid error can be reduced by approximately 27%, and the attitude error can be reduced by approximately 14%. Therefore, the presented method is significant for the application of celestial navigation with hypersonic conditions.

引用

页数：13

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