Improving state estimates and predictions in quick-look orbit determination problems using ridge-type estimation methods
Abstract
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.
- Publication:
-
Astrodynamics 1989
- Pub Date:
- 1990
- Bibcode:
- 1990asdy.conf..395C
- Keywords:
-
- Astrodynamics;
- Minimum Variance Orbit Determination;
- Spacecraft Orbits;
- State Estimation;
- Geodesy;
- Tracking Stations;
- Astrodynamics