High Update Rate Attitude Measurement Method of Star Sensors Based on Star Point Correction of Rolling Shutter Exposure

被引：9
作者：
He, Longdong [1 ,2 ,3 ]
Ma, Yuebo [1 ,3 ]
Zhao, Rujin [1 ,3 ]
Hou, Yaxian [1 ,2 ,3 ]
Zhu, Zifa [1 ,2 ,3 ]
机构：
[1] Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Chinese Acad Sci, Key Lab Sci & Technol Space Optoelect Precis Meas, Chengdu 610209, Peoples R China
来源：
SENSORS | 2021年 / 21卷 / 17期
关键词：
start sensor; rolling shutter exposure; star point correction; attitude update; recursive estimation; ALGORITHM;
D O I：
10.3390/s21175724
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Attitude update rate is one of the important indicators of star sensor performance. In order to resolve the problem of the low attitude update rate of star sensors, this paper proposes a star sensor attitude update method based on star point correction of rolling shutter exposure. Based on the characteristics of the asynchronous exposure of the rolling shutter, recursive estimation of the motion attitude and the corrected star point information were combined to realize multiple updates of the attitude in a single frame of the star map. Simulation and experimental results proved that the proposed method could increase the attitude update rate of a star sensor by 15 times, up to 150 Hz.
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页数：19
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