长春理工大学学报(自然科学版)
長春理工大學學報(自然科學版)
장춘리공대학학보(자연과학판)
JOURNAL OF CHANGCHUN UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE EDITION)
2014年
3期
43-47
,共5页
李欣璐%杨进华%张刘%金光%杨丹蕾
李訢璐%楊進華%張劉%金光%楊丹蕾
리흔로%양진화%장류%금광%양단뢰
Stellarium%星图识别%导航星库%星敏感器
Stellarium%星圖識彆%導航星庫%星敏感器
Stellarium%성도식별%도항성고%성민감기
Stellarium%star pattern identification%guide star catalogue%star sensor
三角形算法是目前实际工程上星敏感器广泛应用的星图识别算法,为了克服三角形识别算法中三角形因特征维数较低带来的冗余匹配问题,对该算法进行了改进。提出一种基于Stellarium软件实时生成模拟星图的方法,建立了星图识别算法仿真计算模型。仿真试验结果表明:利用Stellarium软件能够对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,在测试星图识别算法过程中能够满足星敏感器高精度实时仿真测试要求,为设备的调试、性能评估以及地面试验奠定基础。对全面测试星敏感器的软、硬件性能,及对星敏感器进行精确标定具有重要意义。
三角形算法是目前實際工程上星敏感器廣汎應用的星圖識彆算法,為瞭剋服三角形識彆算法中三角形因特徵維數較低帶來的冗餘匹配問題,對該算法進行瞭改進。提齣一種基于Stellarium軟件實時生成模擬星圖的方法,建立瞭星圖識彆算法倣真計算模型。倣真試驗結果錶明:利用Stellarium軟件能夠對星敏感器各種運行場景下的星圖進行模擬,模擬要素完整、正確,在測試星圖識彆算法過程中能夠滿足星敏感器高精度實時倣真測試要求,為設備的調試、性能評估以及地麵試驗奠定基礎。對全麵測試星敏感器的軟、硬件性能,及對星敏感器進行精確標定具有重要意義。
삼각형산법시목전실제공정상성민감기엄범응용적성도식별산법,위료극복삼각형식별산법중삼각형인특정유수교저대래적용여필배문제,대해산법진행료개진。제출일충기우Stellarium연건실시생성모의성도적방법,건립료성도식별산법방진계산모형。방진시험결과표명:이용Stellarium연건능구대성민감기각충운행장경하적성도진행모의,모의요소완정、정학,재측시성도식별산법과정중능구만족성민감기고정도실시방진측시요구,위설비적조시、성능평고이급지면시험전정기출。대전면측시성민감기적연、경건성능,급대성민감기진행정학표정구유중요의의。
Triangle identification algorithm for star images has been widely used in attitude detection systems that take star sensor as navigation parts at present. An improved star identification algorithm based on the traditional triangle method is proposed in this paper to overcome the low character dimensions and high percentage of redundant matches in star identification.A real-time star image simulation method based on Stellarium software is proposed for the emula-tional test of star pattern recognition. The computation model for star image simulation is established. The simulation test results show that star image simulation for star sensor can be achieved under various operating conditions by using Stellarium software. The elements of simulation are completed and corrected. In the process of test star pattern recogni-tion algorithm can meet the requirements of star sensor and high precision real-time simulation test. The foundation for equipment debugging, performance evaluation and ground test are laid. There is great significance to fully test software and hardware performance of star sensor, and the star sensor precision calibration is.