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- W2781844009 abstract "Abstract Observability analysis is a method for determining whether a chosen state of a system can be determined from the output or measurements. Knowledge of state information availability resulting from observability analysis leads to improved sensor tasking for observation of orbital debris and better control of active spacecraft. This research performs numerical observability analysis of artificial near-Earth objects. Analysis of linearization methods and state transition matrices is performed to determine the viability of applying linear observability methods to the nonlinear orbit problem. Furthermore, pre-whitening is implemented to reformulate classical observability analysis. In addition, the state in observability analysis is typically composed of position and velocity; however, including object characteristics beyond position and velocity can be crucial for precise orbit propagation. For example, solar radiation pressure has a significant impact on the orbit of high area-to-mass ratio objects in geosynchronous orbit. Therefore, determining the time required for solar radiation pressure parameters to become observable is important for understanding debris objects. In order to compare observability analysis results with and without measurement noise and an extended state, quantitative measures of observability are investigated and implemented." @default.
- W2781844009 created "2018-01-12" @default.
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- W2781844009 date "2018-03-01" @default.
- W2781844009 modified "2023-10-17" @default.
- W2781844009 title "Determining characteristics of artificial near-Earth objects using observability analysis" @default.
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- W2781844009 doi "https://doi.org/10.1016/j.actaastro.2017.12.028" @default.
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