Simulation analysis on star image restoration of motion blur based on Wiener filtering

Q4 Physics and Astronomy

光学技术 Pub Date : 2014-01-01 DOI:10.3788/GXJS20144004.0316

韩礼 Han Li, 张丽君 Zhang Lijun, 蔡洪 Cai Hong, 张士峰 Zhang Shifeng

引用次数: 3

Abstract

The star image obtained by star sensor is blurred when spacecraft makes rapid maneuver.Based on Wiener filtering,a star image restoration algorithm is proposed.The influence of blur parameters on the accuracy of star centroid estimation is analysed.The comparison data of star centroid estimation accuracy and attitude estimation accuracy of blurred star image and restored star image are obtained through extensive experiments.Simulation results show that the restored star image can significantly improve the accuracy of star centroid estimation and attitude estimation,and effectively improve the success rate of star image recognition.

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基于维纳滤波的运动模糊星图复原仿真分析

星敏感器获取的星图在航天器快速机动时存在模糊问题。提出了一种基于维纳滤波的星图复原算法。分析了模糊参数对星质心估计精度的影响。通过大量的实验，获得了模糊星图和复原星图的星质心估计精度和姿态估计精度的比较数据。仿真结果表明，恢复后的星图能够显著提高星形心估计和姿态估计的精度，有效提高星图识别的成功率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

光学技术 Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

0.60

自引率

0.00%

发文量

6699

期刊介绍： The predecessor of Optical Technology was Optical Technology, which was founded in 1975. At that time, the Fifth Ministry of Machine Building entrusted the School of Optoelectronics of Beijing Institute of Technology to publish the journal, and it was officially approved by the State Administration of Press, Publication, Radio, Film and Television for external distribution. From 1975 to 1979, the magazine was named Optical Technology, a quarterly with 4 issues per year; from 1980 to the present, the magazine is named Optical Technology, a bimonthly with 6 issues per year, published on the 20th of odd months. The publication policy is: to serve the national economic construction, implement the development of the national economy, serve production and scientific research, and implement the publication policy of "letting a hundred flowers bloom and a hundred schools of thought contend".