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  1. No Access

    Article

    A Drag Coefficient Modeling Approach Using Spatial and Temporal Fourier Expansions for Orbit Determination

    The estimation and modeling of drag effects on low altitude satellites and debris is a limiting problem in the prediction of their orbits over time. Independent of the stochastic variations in atmospheric dens...

    Vishal Ray, Daniel J. Scheeres… in The Journal of the Astronautical Sciences (2020)

  2. No Access

    Article

    A framework of irregularity enlightenment for data pre-processing in data mining

    Irregularities are widespread in large databases and often lead to erroneous conclusions with respect to data mining and statistical analysis. For example, considerable bias is often resulted from many paramet...

    Siu-Tong Au, Rong Duan, Siamak G. Hesar, Wei Jiang in Annals of Operations Research (2010)