智能计算机与应用
智能計算機與應用
지능계산궤여응용
Computer Study
2014年
2期
21-24,28
,共5页
星敏感器%星图识别算法%导航星数据库%奇异值分解
星敏感器%星圖識彆算法%導航星數據庫%奇異值分解
성민감기%성도식별산법%도항성수거고%기이치분해
Star Tracker%Star Recognition Algorithms%Database of Guide Star Pattern%Singular Value Decomposition
星敏感器是高精度的姿态测量部件,在各种航天、航空飞行器的姿态测量或控制系统中发挥着关键作用。作为星敏感器的核心技术,可靠、快速和高精度的星图识别算法一直是重要的研究课题。论文对星图识别算法进行研究。针对基于奇异值分解的星图识别算法可能出现的由于视轴不连续所造成的全天区覆盖率较低问题,提出了一种改进的基于奇异值分解的星图识别算法,详细阐述了各部分算法的设计思想。论文最后在JDK5.0开发环境中用 JAVA 语言实现了改进算法,并与传统的三角形算法的性能进行了比较详尽的对比。
星敏感器是高精度的姿態測量部件,在各種航天、航空飛行器的姿態測量或控製繫統中髮揮著關鍵作用。作為星敏感器的覈心技術,可靠、快速和高精度的星圖識彆算法一直是重要的研究課題。論文對星圖識彆算法進行研究。針對基于奇異值分解的星圖識彆算法可能齣現的由于視軸不連續所造成的全天區覆蓋率較低問題,提齣瞭一種改進的基于奇異值分解的星圖識彆算法,詳細闡述瞭各部分算法的設計思想。論文最後在JDK5.0開髮環境中用 JAVA 語言實現瞭改進算法,併與傳統的三角形算法的性能進行瞭比較詳儘的對比。
성민감기시고정도적자태측량부건,재각충항천、항공비행기적자태측량혹공제계통중발휘착관건작용。작위성민감기적핵심기술,가고、쾌속화고정도적성도식별산법일직시중요적연구과제。논문대성도식별산법진행연구。침대기우기이치분해적성도식별산법가능출현적유우시축불련속소조성적전천구복개솔교저문제,제출료일충개진적기우기이치분해적성도식별산법,상세천술료각부분산법적설계사상。논문최후재JDK5.0개발배경중용 JAVA 어언실현료개진산법,병여전통적삼각형산법적성능진행료비교상진적대비。
Star tracker is most precise instrument of attitude measurement , playing a vital role in attitude measurement and control system of all kinds of Aerospace Flight Vehicles .Star pattern recognition algorithm as one of core technology of star tracker is so important that the reliable , fast and accurate star pattern recognition is widely investigated .The star pattern recognition algorithms are investigated .For the problem of low coverage throughout the sky caused by lack of bore sight di -rection, an improved singular value method for recognition algorithm is proposed respectively .The design thoughts of pro-grams are elaborated clearly .Finally, this thesis develops JAVA language code of the improved algorithm in the JDK 5.0 Builder environment and makes an comparison with performance of the traditional Triangle algorithm in detail .