【摘要】：研究太陽目標特性對太陽望遠鏡相關(guān)跟蹤圖像穩(wěn)定系統(tǒng)的影響,采用Hinode太陽光學望遠鏡的觀測數(shù)據(jù),對以2min為時間間隔采樣的5幅太陽米粒組織圖像進行相關(guān)計算.針對國家天文臺正在研制的空間太陽望遠鏡(SST)主光學望遠鏡(MOT)相關(guān)跟蹤圖像穩(wěn)定系統(tǒng),分析了太陽米粒組織隨時間衍化對相關(guān)跟蹤系統(tǒng)圖像移動計算精度的影響以及米粒組織動態(tài)變化對望遠鏡曝光時間的影響.仿真結(jié)果表明,更換參考圖像時間不能大于2min,并且在保證算法實時性的情況下,選用參考圖像的尺寸與相關(guān)跟蹤系統(tǒng)定位精度成正比.
[Abstract]:The effects of solar target characteristics on the stability system of the correlation tracking image of the solar telescope were studied. Using the observation data of the Hinode solar optical telescope, the correlation calculation was carried out for five solar rice grained tissue images sampled at 2min time intervals. In view of the space solar telescope (SST) main optical telescope (MOT) correlation tracking image stabilization system which is being developed by the National Astronomical Observatory, The influence of the temporal evolution of the solar grain structure on the accuracy of the image movement calculation of the correlation tracking system and the influence of the dynamic change of the grain structure on the exposure time of the telescope are analyzed. The simulation results show that the change time of reference image can not be longer than 2 mins, and the size of reference image is proportional to the positioning accuracy of the correlation tracking system under the condition of ensuring the real-time performance of the algorithm.
【作者單位】： 中國科學院國家天文臺;中國科學院太陽活動重點實驗室(國家天文臺);中國科學院研究生院;
【基金】：國家自然科學基金資助項目(10778628) 中國科學院知識創(chuàng)新工程資助項目(O531131004)
【分類號】：P111.41

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