研究大气观测对探测近地轨道小行星的影响

Anthony P. O'Dell, S. Cain
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引用次数: 3

摘要

计算机模拟用于比较在改变大气参数的情况下将模拟的小行星图像与点扩散函数相关联的结果。图像包含一个点源物体,由于大气而被涂抹。点扩散函数用r0计算,因为r0在数据采集时刻可以测量。使用相同的数据输入,根据不相关的阈值检测算法对这些结果进行评估。所得的接收机工作特性(ROC)曲线显示了不同大气对相关算法和阈值算法检测不同大小近地天体的影响。对这些结果进行了讨论和比较。对在近地天体搜索中应用这些算法提出了建议。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigating the effects of atmospheric seeing on the detection of near earth orbiting asteroids
Computer simulations are used to compare the results of correlating a simulated image of an asteroid with a point spread function while varying the atmospheric parameter. The images contain a point source object that is smeared due to the atmosphere. The point spread function is calculated using r0, since r0 can be measured at the time of time of data collection. These results are evaluated against an uncorrelated threshold detection algorithm using the same data input. The resulting receiver operating characteristic (ROC) curves show the effects of the different atmospheres on detection of different sized Near Earth Objects (NEOs) for both the correlation and threshold algorithm. These results are discussed and compared. Recommendations are made for applying these algorithms in the search for NEOs.
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