ADAPTIVE ORBIT DETERMINATION FOR INTERPLANETARY SPACECRAFT

Citation
Pd. Burkhart et Rh. Bishop, ADAPTIVE ORBIT DETERMINATION FOR INTERPLANETARY SPACECRAFT, Journal of guidance, control, and dynamics, 19(3), 1996, pp. 693-701
Citations number
22
Categorie Soggetti
Instument & Instrumentation","Aerospace Engineering & Tecnology
ISSN journal
07315090
Volume
19
Issue
3
Year of publication
1996
Pages
693 - 701
Database
ISI
SICI code
0731-5090(1996)19:3<693:AODFIS>2.0.ZU;2-I
Abstract
The interplanetary orbit determination problem has been traditionally solved using least-squares techniques. Because of the operational limi tations of this method, a Kalman filter approach has been proposed for future missions that includes all spacecraft and measurement modeling states in the filter. The goal is to increase the accuracy of the nav igation process while utilizing only radiometric (Doppler and range) d ata. As an extension, an adaptive orbit determination approach (based on the Magill filter bank) has been developed here to process radiomet ric data. This adaptive approach can be used to systematically determi ne the operational filter parameters, which are currently selected usi ng ad hoc methods, The Mars Pathfinder mission is utilized to demonstr ate the effectiveness of the adaptive filter bank in determining varia nces for the process and measurement noise parameters based on the tra cking data. Error budgets are presented for the range and Doppler case s, which show nongravitational accelerations and solar radiation press ure to be the main error sources. Results for the range case show that the adaptive enhanced filter bank is effective in selecting the noise variances that match those used to generate the data. Results for the Doppler case are not as conclusive, resulting primarily from lineariz ation errors.