Improving state estimates and predictions in quick-look orbit determination problems using ridge-type estimation methods
Recent investigations of ill-conditioned orbit determination problems have demonstrated that ridge-type estimation methods provide increased solution accuracy over conventional estimation techniques. This paper investigates the application of ridge-type estimators to the 'quick-look' orbit determination problem. Several quick-look scenarios are analyzed using both minimum variance and ridge-type estimation methods. Batches of progressively fewer observations are processed, and the relative performance of both estimators are evaluated. Results show that the use of ridge-type estimation methods can significantly enhance current estimation and prediction capabilities in quick-look orbit determination problems.
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- Minimum Variance Orbit Determination;
- Spacecraft Orbits;
- State Estimation;
- Tracking Stations;