地基观星系统设计及方法实现

发布时间：2018-02-24 23:13

  本文关键词： 赤道仪 星体 跟踪 观测 误差源　出处：《激光与红外》2016年02期 　论文类型：期刊论文

【摘要】：星体作为定标标准源具有位置、辐射出射度稳定等优势,为得到其长期数据,研究了一套地基观星系统,实现对星体的长时间连续跟踪扫描。首先通过星体轨道预算模型推算其各时刻所处位置,确定赤道仪跟踪轨迹,使跟踪目标长期处在跟踪平台内的光谱仪视场。通过光谱仪观测待测星体,将测得数据进行处理,得到观测结果。实验允许跟踪精度最大误差为0.01°,经外场实验验证仪器跟踪精度为0.004°,验证了系统的稳定性、精确性完全满足实验需求,设备能够以较高精度实现对星体的跟踪观测,论证了该方法的可行性。最后,对实验的误差源进行了分析。
[Abstract]:Stars have the advantages of stable radiance and location as calibration standard sources. In order to obtain their long-term data, a set of ground-based observation system is studied. The long time continuous tracking scanning of the star is realized. Firstly, the location of the star at every moment is calculated by the budget model of the star orbit, and the track of the equator is determined. Make the tracking target in the field of view of spectrometer in the tracking platform for a long time. Through the spectrometer to observe the stars to be tested, the measured data will be processed, The experimental results show that the maximum error of the allowed tracking accuracy is 0.01 掳, and the tracking accuracy of the instrument is 0.004 掳. The stability of the system is verified, and the accuracy of the system meets the requirements of the experiment. The device is able to track and observe stars with high accuracy, which proves the feasibility of this method. Finally, the error source of the experiment is analyzed.
【作者单位】： 中国科学院长春光学精密机械与物理研究所;中国科学院大学;
【基金】：863项目(No.2015AA123704) 国家自然科学基金项目(No.41175028)资助
【分类号】：P111

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