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船用星敏感器星图模拟方法

A Star Image Simulation Method for a Marine Star Tracker

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摘要

针对船用星敏感器的仿真测试, 提出一种高精度实时星图模拟方法。建立了星图模拟计算模型, 并对非恒星要素的模拟方法进行分析。采用 Visual C++ 编程实现相关算法。给出典型星图模拟实例, 并与 Starry Night软件产生的星图进行比对。结果表明, 本文提出的方法能够对船用星敏感器各种运行场景下的星图进行模拟, 模拟要素完整、正确, 模拟精度与 Starry Night接近至亚像素级别, 每帧模拟星图生成时间约 24.8 ms。能够满足船用星敏感器高精度实时仿真测试要求。

Abstract

A high-precision real-time star image simulation method is proposed for the emulational test of a marine star tracker. The computation model for star image simulation is established, and the non-stellar elements simulation method is analyzed. The related algorithms are realized by Visual C++ programming. Typical star image simulation examples are presented and compared with the star images generated by Starry Night. The results show that this proposed method can be used to achieve star image simulation for a marine star tracker under various operating conditions. The elements of simulation are complete and correct. The simulation accuracy is comparable to the accuracy of Starry Night at sub-pixel level. And the simulation time for each image is about 24.8 ms. This method meets well the basic requirements of high-precision real-time emulational test of a marine star tracker.

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中图分类号:U666.1

DOI:10.3969/j.issn.1003-501x.2013.04.011

所属栏目:空间光学与遥感技术

基金项目:国家科技支撑计划资助项目(2012BAH36B00)

收稿日期:2012-11-02

修改稿日期:2013-01-05

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作者单位    点击查看

李辉:海军大连舰艇学院航海系, 辽宁大连 116018
王安国:海军大连舰艇学院航海系, 辽宁大连 116018
张磊:海军大连舰艇学院航海系, 辽宁大连 116018
佟帅:海军大连舰艇学院航海系, 辽宁大连 116018

联系人作者:李辉(lihui197910@yahoo.cn)

备注:李辉(1979-), 男(汉族), 河南确山人。博士研究生, 主要研究工作是自主天文导航、信号处理等。

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引用该论文

LI Hui,WANG Anguo,ZHANG Lei,TONG Shuai. A Star Image Simulation Method for a Marine Star Tracker[J]. Opto-Electronic Engineering, 2013, 40(4): 72-79

李辉,王安国,张磊,佟帅. 船用星敏感器星图模拟方法[J]. 光电工程, 2013, 40(4): 72-79

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